--- original
+++ modified
@@ -141,6 +141,7 @@
     task_source_functions!(self, dom_manipulation_task_source, DOMManipulation);
     task_source_functions!(self, file_reading_task_source, FileReading);
     task_source_functions!(self, font_loading_task_source, FontLoading);
+    #[cfg(feature = "gamepad")]
     task_source_functions!(self, gamepad_task_source, Gamepad);
     // FIXME(arihant2math): uncomment when geolocation is implemented.
     // task_source_functions!(self, geolocation_task_source, Geolocation);