diff --git a/ext/gl/gstgltestsrc.c b/ext/gl/gstgltestsrc.c
index 45788ddc65..69c8b33b63 100644
--- a/ext/gl/gstgltestsrc.c
+++ b/ext/gl/gstgltestsrc.c
@@ -568,6 +568,11 @@ gst_gl_test_src_stop (GstBaseSrc * basesrc)
     src->context = NULL;
   }
 
+  if (src->src_impl) {
+    src->src_funcs->free (src->src_impl);
+    src->src_impl = NULL;
+  }
+
   return TRUE;
 }