diff --git a/sys/decklink/gstdecklink.cpp b/sys/decklink/gstdecklink.cpp
index f39e2fc..2d49bb7 100644
--- a/sys/decklink/gstdecklink.cpp
+++ b/sys/decklink/gstdecklink.cpp
@@ -814,7 +814,7 @@
           video_frame->GetStreamTime (&stream_time, &stream_duration,
           GST_SECOND);
       if (res != S_OK) {
-        GST_ERROR ("Failed to get stream time: 0x%08lx", res);
+        GST_ERROR ("Failed to get stream time: 0x%08x", res);
         stream_time = GST_CLOCK_TIME_NONE;
         stream_duration = GST_CLOCK_TIME_NONE;
       }
@@ -828,7 +828,7 @@
             &dtc);
 
         if (res != S_OK) {
-          GST_DEBUG_OBJECT (videosrc, "Failed to get timecode: 0x%08lx", res);
+          GST_DEBUG_OBJECT (videosrc, "Failed to get timecode: 0x%08x", res);
           dtc = NULL;
         }
       }
@@ -843,7 +843,7 @@
 
       res = audio_packet->GetPacketTime (&packet_time, GST_SECOND);
       if (res != S_OK) {
-        GST_ERROR ("Failed to get stream time: 0x%08lx", res);
+        GST_ERROR ("Failed to get stream time: 0x%08x", res);
         packet_time = GST_CLOCK_TIME_NONE;
       }
       m_input->got_audio_packet (audiosrc, audio_packet, capture_time,
@@ -950,7 +950,7 @@
     ret = decklink->QueryInterface (IID_IDeckLinkInput,
         (void **) &devices[i].input.input);
     if (ret != S_OK) {
-      GST_WARNING ("selected device does not have input interface: 0x%08lx",
+      GST_WARNING ("selected device does not have input interface: 0x%08x",
           ret);
     } else {
       IDeckLinkDisplayModeIterator *mode_iter;
@@ -987,7 +987,7 @@
     ret = decklink->QueryInterface (IID_IDeckLinkOutput,
         (void **) &devices[i].output.output);
     if (ret != S_OK) {
-      GST_WARNING ("selected device does not have output interface: 0x%08lx",
+      GST_WARNING ("selected device does not have output interface: 0x%08x",
           ret);
     } else {
       IDeckLinkDisplayModeIterator *mode_iter;
@@ -1025,7 +1025,7 @@
     ret = decklink->QueryInterface (IID_IDeckLinkConfiguration,
         (void **) &devices[i].input.config);
     if (ret != S_OK) {
-      GST_WARNING ("selected device does not have config interface: 0x%08lx",
+      GST_WARNING ("selected device does not have config interface: 0x%08x",
           ret);
     }
 
@@ -1033,8 +1033,8 @@
         (void **) &devices[i].input.attributes);
     devices[i].output.attributes = devices[i].input.attributes;
     if (ret != S_OK) {
-      GST_WARNING ("selected device does not have attributes interface:"
-          " 0x%08lx", ret);
+      GST_WARNING ("selected device does not have attributes interface: 0x%08x",
+          ret);
     }
 
     ret = iterator->Next (&decklink);
@@ -1272,7 +1272,7 @@
   GST_LOG_OBJECT (clock,
       "result %" GST_TIME_FORMAT " time %" GST_TIME_FORMAT " last time %"
       GST_TIME_FORMAT " offset %" GST_TIME_FORMAT " start time %"
-      GST_TIME_FORMAT " (ret: 0x%08lx)", GST_TIME_ARGS (result),
+      GST_TIME_FORMAT " (ret: 0x%08x)", GST_TIME_ARGS (result),
       GST_TIME_ARGS (time), GST_TIME_ARGS (last_time), GST_TIME_ARGS (offset),
       GST_TIME_ARGS (start_time), ret);
 
diff --git a/sys/decklink/gstdecklinkaudiosink.cpp b/sys/decklink/gstdecklinkaudiosink.cpp
index 5d1e324..1d63154 100644
--- a/sys/decklink/gstdecklinkaudiosink.cpp
+++ b/sys/decklink/gstdecklinkaudiosink.cpp
@@ -275,8 +275,8 @@
       written_sum += written;
     } while (len > 0 && res == S_OK);
 
-    GST_LOG_OBJECT (m_ringbuffer->sink, "Wrote %u samples: 0x%08lx",
-        written_sum, res);
+    GST_LOG_OBJECT (m_ringbuffer->sink, "Wrote %u samples: 0x%08x", written_sum,
+        res);
 
     gst_audio_ring_buffer_clear (GST_AUDIO_RING_BUFFER_CAST (m_ringbuffer),
         seg);
@@ -319,7 +319,7 @@
       ret = 0;
   }
 
-  GST_DEBUG_OBJECT (self->sink, "Delay: %u (0x%08lx)", ret, res);
+  GST_DEBUG_OBJECT (self->sink, "Delay: %u (0x%08x)", ret, res);
 
   return ret;
 }
@@ -414,7 +414,7 @@
   ret = self->output->output->EnableAudioOutput (bmdAudioSampleRate48kHz,
       sample_depth, spec->info.channels, bmdAudioOutputStreamContinuous);
   if (ret != S_OK) {
-    GST_WARNING_OBJECT (self->sink, "Failed to enable audio output 0x%08lx",
+    GST_WARNING_OBJECT (self->sink, "Failed to enable audio output 0x%08x",
         ret);
     return FALSE;
   }
@@ -424,7 +424,7 @@
       output->SetAudioCallback (new GStreamerAudioOutputCallback (self));
   if (ret != S_OK) {
     GST_WARNING_OBJECT (self->sink,
-        "Failed to set audio output callback 0x%08lx", ret);
+        "Failed to set audio output callback 0x%08x", ret);
     return FALSE;
   }
 
diff --git a/sys/decklink/gstdecklinkaudiosrc.cpp b/sys/decklink/gstdecklinkaudiosrc.cpp
index 57f5ecd..43c2d42 100644
--- a/sys/decklink/gstdecklinkaudiosrc.cpp
+++ b/sys/decklink/gstdecklinkaudiosrc.cpp
@@ -404,7 +404,7 @@
         self->input->config->SetInt (bmdDeckLinkConfigAudioInputConnection,
         conn);
     if (ret != S_OK) {
-      GST_ERROR ("set configuration (audio input connection): 0x%08lx", ret);
+      GST_ERROR ("set configuration (audio input connection): 0x%08x", ret);
       return FALSE;
     }
   }
@@ -412,7 +412,7 @@
   ret = self->input->input->EnableAudioInput (bmdAudioSampleRate48kHz,
       sample_depth, self->info.channels);
   if (ret != S_OK) {
-    GST_WARNING_OBJECT (self, "Failed to enable audio input: 0x%08lx", ret);
+    GST_WARNING_OBJECT (self, "Failed to enable audio input: 0x%08x", ret);
     return FALSE;
   }
 
diff --git a/sys/decklink/gstdecklinkvideosink.cpp b/sys/decklink/gstdecklinkvideosink.cpp
index 96c8706..7586bc3 100644
--- a/sys/decklink/gstdecklinkvideosink.cpp
+++ b/sys/decklink/gstdecklinkvideosink.cpp
@@ -403,7 +403,7 @@
 
   ret = self->output->output->EnableVideoOutput (mode->mode, flags);
   if (ret != S_OK) {
-    GST_WARNING_OBJECT (self, "Failed to enable video output: 0x%08lx", ret);
+    GST_WARNING_OBJECT (self, "Failed to enable video output: 0x%08x", ret);
     return FALSE;
   }
 
@@ -611,7 +611,7 @@
       &frame);
   if (ret != S_OK) {
     GST_ELEMENT_ERROR (self, STREAM, FAILED,
-        (NULL), ("Failed to create video frame: 0x%08lx", ret));
+        (NULL), ("Failed to create video frame: 0x%08x", ret));
     return GST_FLOW_ERROR;
   }
 
@@ -650,7 +650,7 @@
         (uint8_t) tc_meta->tc.seconds, (uint8_t) tc_meta->tc.frames, bflags);
     if (ret != S_OK) {
       GST_ERROR_OBJECT (self,
-          "Failed to set timecode %s to video frame: 0x%08lx", tc_str, ret);
+          "Failed to set timecode %s to video frame: 0x%08x", tc_str, ret);
       flow_ret = GST_FLOW_ERROR;
       g_free (tc_str);
       goto out;
@@ -666,7 +666,7 @@
     ret = self->output->output->DisplayVideoFrameSync (frame);
     if (ret != S_OK) {
       GST_ELEMENT_WARNING (self, STREAM, FAILED,
-          (NULL), ("Failed to show video frame synchronously: 0x%08lx", ret));
+          (NULL), ("Failed to show video frame synchronously: 0x%08x", ret));
       ret = S_OK;
     }
   }
@@ -679,7 +679,7 @@
       running_time, running_time_duration, GST_SECOND);
   if (ret != S_OK) {
     GST_ELEMENT_ERROR (self, STREAM, FAILED,
-        (NULL), ("Failed to schedule frame: 0x%08lx", ret));
+        (NULL), ("Failed to schedule frame: 0x%08x", ret));
     flow_ret = GST_FLOW_ERROR;
     goto out;
   }
@@ -828,7 +828,7 @@
       res = self->output->output->StopScheduledPlayback (0, 0, 0);
       if (res != S_OK) {
         GST_ELEMENT_ERROR (self, STREAM, FAILED,
-            (NULL), ("Failed to stop scheduled playback: 0x%08lx", res));
+            (NULL), ("Failed to stop scheduled playback: 0x%08x", res));
         gst_object_unref (clock);
         return;
       }
@@ -843,7 +843,7 @@
         GST_SECOND, 1.0);
     if (res != S_OK) {
       GST_ELEMENT_ERROR (self, STREAM, FAILED,
-          (NULL), ("Failed to start scheduled playback: 0x%08lx", res));
+          (NULL), ("Failed to start scheduled playback: 0x%08x", res));
       gst_object_unref (clock);
       return;
     }
@@ -911,7 +911,7 @@
   res = self->output->output->StopScheduledPlayback (start_time, 0, GST_SECOND);
   if (res != S_OK) {
     GST_ELEMENT_ERROR (self, STREAM, FAILED,
-        (NULL), ("Failed to stop scheduled playback: 0x%08lx", res));
+        (NULL), ("Failed to stop scheduled playback: 0x%08x", res));
     ret = GST_STATE_CHANGE_FAILURE;
   }
   self->internal_base_time = GST_CLOCK_TIME_NONE;
diff --git a/sys/decklink/gstdecklinkvideosrc.cpp b/sys/decklink/gstdecklinkvideosrc.cpp
index 19fbb64..5f3ff75 100644
--- a/sys/decklink/gstdecklinkvideosrc.cpp
+++ b/sys/decklink/gstdecklinkvideosrc.cpp
@@ -421,7 +421,7 @@
         gst_decklink_get_connection (self->connection));
     if (ret != S_OK) {
       GST_ERROR_OBJECT (self,
-          "Failed to set configuration (input source): 0x%08lx", ret);
+          "Failed to set configuration (input source): 0x%08x", ret);
       return FALSE;
     }
 
@@ -430,7 +430,7 @@
           bmdAnalogVideoFlagCompositeSetup75);
       if (ret != S_OK) {
         GST_ERROR_OBJECT (self,
-            "Failed to set configuration (composite setup): 0x%08lx", ret);
+            "Failed to set configuration (composite setup): 0x%08x", ret);
         return FALSE;
       }
     }
@@ -447,7 +447,7 @@
           &autoDetection);
       if (ret != S_OK) {
         GST_ERROR_OBJECT (self,
-            "Failed to get attribute (autodetection): 0x%08lx", ret);
+            "Failed to get attribute (autodetection): 0x%08x", ret);
         return FALSE;
       }
       if (autoDetection)
@@ -465,7 +465,7 @@
   format = self->caps_format;
   ret = self->input->input->EnableVideoInput (mode->mode, format, flags);
   if (ret != S_OK) {
-    GST_WARNING_OBJECT (self, "Failed to enable video input: 0x%08lx", ret);
+    GST_WARNING_OBJECT (self, "Failed to enable video input: 0x%08x", ret);
     return FALSE;
   }
 
@@ -694,7 +694,7 @@
 
       res = dtc->GetComponents (&hours, &minutes, &seconds, &frames);
       if (res != S_OK) {
-        GST_ERROR ("Could not get components for timecode %p: 0x%08lx", dtc,
+        GST_ERROR ("Could not get components for timecode %p: 0x%08x", dtc,
             res);
         f.tc = NULL;
       } else {
@@ -1022,7 +1022,7 @@
     res = self->input->input->StartStreams ();
     if (res != S_OK) {
       GST_ELEMENT_ERROR (self, STREAM, FAILED,
-          (NULL), ("Failed to start streams: 0x%08lx", res));
+          (NULL), ("Failed to start streams: 0x%08x", res));
       return;
     }
   } else {
@@ -1076,7 +1076,7 @@
       res = self->input->input->StopStreams ();
       if (res != S_OK) {
         GST_ELEMENT_ERROR (self, STREAM, FAILED,
-            (NULL), ("Failed to stop streams: 0x%08lx", res));
+            (NULL), ("Failed to stop streams: 0x%08x", res));
         ret = GST_STATE_CHANGE_FAILURE;
       }
       break;