diff --git a/tests/showrendernode.c b/tests/showrendernode.c
index 25e9960251..4f41f0c4f9 100644
--- a/tests/showrendernode.c
+++ b/tests/showrendernode.c
@@ -152,6 +152,9 @@ main (int argc, char **argv)
       return 1;
     }
 
+  g_option_context_free (option_context);
+  option_context = NULL;
+
   g_message ("Compare: %d, write to filename: %s", compare_node, write_to_filename);
 
   gtk_init ();