diff --git a/sys/v4l2/gstv4l2videoenc.c b/sys/v4l2/gstv4l2videoenc.c
index 7e88923..44f1605 100644
--- a/sys/v4l2/gstv4l2videoenc.c
+++ b/sys/v4l2/gstv4l2videoenc.c
@@ -772,6 +772,8 @@
   }
 
   gst_video_codec_frame_unref (frame);
+  gst_buffer_unref (frame->input_buffer);
+  frame->input_buffer = NULL;
   return ret;
 
   /* ERRORS */