diff --git a/app/display/gimptoolgui.c b/app/display/gimptoolgui.c
index bbe88e65f0..db56935b33 100644
--- a/app/display/gimptoolgui.c
+++ b/app/display/gimptoolgui.c
@@ -706,7 +706,8 @@ gimp_tool_gui_set_response_sensitive (GimpToolGui *gui,
 
   entry = response_entry_find (private->response_entries, response_id);
 
-  g_return_if_fail (entry != NULL);
+  if (! entry)
+    return;
 
   entry->sensitive = sensitive;