diff --git a/omx/gstomxh263enc.c b/omx/gstomxh263enc.c
index e3c1a9913b..53080faf15 100644
--- a/omx/gstomxh263enc.c
+++ b/omx/gstomxh263enc.c
@@ -261,7 +261,7 @@ gst_omx_h263_enc_get_caps (GstOMXVideoEnc * enc, GstOMXPort * port,
         break;
       default:
         g_assert_not_reached ();
-        break;
+        return NULL;
     }
 
     switch (param.eLevel) {
@@ -288,7 +288,7 @@ gst_omx_h263_enc_get_caps (GstOMXVideoEnc * enc, GstOMXPort * port,
         break;
       default:
         g_assert_not_reached ();
-        break;
+        return NULL;
     }
 
     gst_caps_set_simple (caps,
diff --git a/omx/gstomxh264enc.c b/omx/gstomxh264enc.c
index 9adac04236..d8446b6334 100644
--- a/omx/gstomxh264enc.c
+++ b/omx/gstomxh264enc.c
@@ -258,7 +258,7 @@ gst_omx_h264_enc_get_caps (GstOMXVideoEnc * enc, GstOMXPort * port,
         break;
       default:
         g_assert_not_reached ();
-        break;
+        return NULL;
     }
 
     switch (param.eLevel) {
@@ -312,7 +312,7 @@ gst_omx_h264_enc_get_caps (GstOMXVideoEnc * enc, GstOMXPort * port,
         break;
       default:
         g_assert_not_reached ();
-        break;
+        return NULL;
     }
     gst_caps_set_simple (caps,
         "profile", G_TYPE_STRING, profile, "level", G_TYPE_STRING, level, NULL);
diff --git a/omx/gstomxmpeg4videoenc.c b/omx/gstomxmpeg4videoenc.c
index 15b8ce724f..a5d9371c28 100644
--- a/omx/gstomxmpeg4videoenc.c
+++ b/omx/gstomxmpeg4videoenc.c
@@ -294,7 +294,7 @@ gst_omx_mpeg4_video_enc_get_caps (GstOMXVideoEnc * enc, GstOMXPort * port,
         break;
       default:
         g_assert_not_reached ();
-        break;
+        return NULL;
     }
 
     switch (param.eLevel) {
@@ -324,7 +324,7 @@ gst_omx_mpeg4_video_enc_get_caps (GstOMXVideoEnc * enc, GstOMXPort * port,
         break;
       default:
         g_assert_not_reached ();
-        break;
+        return NULL;
     }
 
     gst_caps_set_simple (caps,