diff --git a/gdk/quartz/GdkQuartzWindow.c b/gdk/quartz/GdkQuartzWindow.c
index d127690999..cbd54937e3 100644
--- a/gdk/quartz/GdkQuartzWindow.c
+++ b/gdk/quartz/GdkQuartzWindow.c
@@ -454,7 +454,7 @@ update_context_from_dragging_info (id <NSDraggingInfo> sender)
 
 - (NSDragOperation)draggingEntered:(id <NSDraggingInfo>)sender
 {
-  GdkDeviceManager device_manager;
+  GdkDeviceManager *device_manager;
   GdkEvent *event;
   GdkWindow *window;