diff --git a/gst-libs/gst/allocators/gstdmabuf.c b/gst-libs/gst/allocators/gstdmabuf.c
index a9a0775..c2175c0 100644
--- a/gst-libs/gst/allocators/gstdmabuf.c
+++ b/gst-libs/gst/allocators/gstdmabuf.c
@@ -100,7 +100,8 @@
 {
   g_return_val_if_fail (GST_IS_DMABUF_ALLOCATOR (allocator), NULL);
 
-  return gst_fd_allocator_alloc (allocator, fd, size, GST_FD_MEMORY_FLAG_KEEP_MAPPED);
+  return gst_fd_allocator_alloc (allocator, fd, size,
+      GST_FD_MEMORY_FLAG_KEEP_MAPPED | GST_FD_MEMORY_FLAG_PROT_WRITE);
 }
 
 /**
diff --git a/gst-libs/gst/allocators/gstfdmemory.c b/gst-libs/gst/allocators/gstfdmemory.c
index ee2b945..6b1632c 100644
--- a/gst-libs/gst/allocators/gstfdmemory.c
+++ b/gst-libs/gst/allocators/gstfdmemory.c
@@ -88,6 +88,7 @@
 
   prot = flags & GST_MAP_READ ? PROT_READ : 0;
   prot |= flags & GST_MAP_WRITE ? PROT_WRITE : 0;
+  prot |= mem->flags & GST_FD_MEMORY_FLAG_PROT_WRITE ? PROT_WRITE : 0;
 
   g_mutex_lock (&mem->lock);
   /* do not mmap twice the buffer */
diff --git a/gst-libs/gst/allocators/gstfdmemory.h b/gst-libs/gst/allocators/gstfdmemory.h
index 6693593..6cdc605 100644
--- a/gst-libs/gst/allocators/gstfdmemory.h
+++ b/gst-libs/gst/allocators/gstfdmemory.h
@@ -58,6 +58,7 @@
   GST_FD_MEMORY_FLAG_KEEP_MAPPED = (1 << 0),
   GST_FD_MEMORY_FLAG_MAP_PRIVATE = (1 << 1),
   GST_FD_MEMORY_FLAG_DONT_CLOSE  = (1 << 2),
+  GST_FD_MEMORY_FLAG_PROT_WRITE  = (1 << 31),
 } GstFdMemoryFlags;
 
 /**