diff --git a/gst-libs/gst/video/convertframe.c b/gst-libs/gst/video/convertframe.c
index 47cab8ad69..227d235212 100644
--- a/gst-libs/gst/video/convertframe.c
+++ b/gst-libs/gst/video/convertframe.c
@@ -532,6 +532,7 @@ convert_frame_finish (GstVideoConvertSampleContext * context,
   if (context->pipeline) {
     gst_element_call_async (context->pipeline, convert_frame_stop_pipeline,
         NULL, NULL);
+    gst_object_unref (context->pipeline);
     context->pipeline = NULL;
   }
 }