diff --git a/src/core/meta-gesture-tracker.c b/src/core/meta-gesture-tracker.c
index 8fcc67285..07ac6ec61 100644
--- a/src/core/meta-gesture-tracker.c
+++ b/src/core/meta-gesture-tracker.c
@@ -420,7 +420,7 @@ meta_gesture_tracker_untrack_stage (MetaGestureTracker *tracker)
 gboolean
 meta_gesture_tracker_handle_event (MetaGestureTracker *tracker,
                                    ClutterStage       *stage,
-				   const ClutterEvent *event)
+                                   const ClutterEvent *event)
 {
   MetaGestureTrackerPrivate *priv;
   ClutterEventSequence *sequence;