diff --git a/src/gst/gstpipewireformat.c b/src/gst/gstpipewireformat.c
index 222bb9f20..2bd84bb38 100644
--- a/src/gst/gstpipewireformat.c
+++ b/src/gst/gstpipewireformat.c
@@ -858,6 +858,8 @@ gst_caps_from_format (const struct spa_pod *format)
           "stream-format", G_TYPE_STRING, "byte-stream",
           "alignment", G_TYPE_STRING, "au",
           NULL);
+    } else {
+	    return NULL;
     }
     if ((prop = spa_pod_object_find_prop (obj, prop, SPA_FORMAT_VIDEO_size))) {
       handle_rect_prop (prop, "width", "height", res);