diff --git a/gst/gstbuffer.c b/gst/gstbuffer.c
index 56b190a4bb..c1f0ebb91d 100644
--- a/gst/gstbuffer.c
+++ b/gst/gstbuffer.c
@@ -2331,6 +2331,9 @@ _gst_parent_buffer_meta_transform (GstBuffer * dest, GstMeta * meta,
 
     GST_CAT_DEBUG (gst_parent_buffer_meta_debug,
         "copy buffer reference metadata");
+  } else {
+    /* return FALSE, if transform type is not supported */
+    return FALSE;
   }
   return TRUE;
 }
diff --git a/libs/gst/net/gstnetaddressmeta.c b/libs/gst/net/gstnetaddressmeta.c
index 9c970ba331..c4cdd4d175 100644
--- a/libs/gst/net/gstnetaddressmeta.c
+++ b/libs/gst/net/gstnetaddressmeta.c
@@ -44,10 +44,13 @@ static gboolean
 net_address_meta_transform (GstBuffer * transbuf, GstMeta * meta,
     GstBuffer * buffer, GQuark type, gpointer data)
 {
-  GstNetAddressMeta *nmeta = (GstNetAddressMeta *) meta;
+  GstNetAddressMeta *smeta, *dmeta;
+  smeta = (GstNetAddressMeta *) meta;
 
   /* we always copy no matter what transform */
-  gst_buffer_add_net_address_meta (transbuf, nmeta->addr);
+  dmeta = gst_buffer_add_net_address_meta (transbuf, smeta->addr);
+  if (!dmeta)
+    return FALSE;
 
   return TRUE;
 }
diff --git a/libs/gst/net/gstnetcontrolmessagemeta.c b/libs/gst/net/gstnetcontrolmessagemeta.c
index fca39b5451..ff9b8084ad 100644
--- a/libs/gst/net/gstnetcontrolmessagemeta.c
+++ b/libs/gst/net/gstnetcontrolmessagemeta.c
@@ -47,10 +47,13 @@ static gboolean
 net_control_message_meta_transform (GstBuffer * transbuf, GstMeta * meta,
     GstBuffer * buffer, GQuark type, gpointer data)
 {
-  GstNetControlMessageMeta *nmeta = (GstNetControlMessageMeta *) meta;
+  GstNetControlMessageMeta *smeta, *dmeta;
+  smeta = (GstNetControlMessageMeta *) meta;
 
   /* we always copy no matter what transform */
-  gst_buffer_add_net_control_message_meta (transbuf, nmeta->message);
+  dmeta = gst_buffer_add_net_control_message_meta (transbuf, smeta->message);
+  if (!dmeta)
+    return FALSE;
 
   return TRUE;
 }
diff --git a/tests/check/gst/gstmeta.c b/tests/check/gst/gstmeta.c
index 0cb034fcf9..88205fc7cc 100644
--- a/tests/check/gst/gstmeta.c
+++ b/tests/check/gst/gstmeta.c
@@ -117,6 +117,9 @@ test_transform_func (GstBuffer * transbuf, GstMeta * meta,
       test->duration = -1;
     }
     test->clock_rate = tmeta->clock_rate;
+  } else {
+    /* return FALSE, if transform type is not supported */
+    return FALSE;
   }
   return TRUE;
 }