diff --git a/atom/browser/native_browser_view_mac.mm b/atom/browser/native_browser_view_mac.mm
index 6ab6391e6083..3d77b2a84891 100644
--- a/atom/browser/native_browser_view_mac.mm
+++ b/atom/browser/native_browser_view_mac.mm
@@ -18,6 +18,10 @@ const NSAutoresizingMaskOptions kDefaultAutoResizingMask =
 
 @end
 
+@interface NSWindow ()
+- (void)performWindowDragWithEvent:(NSEvent *)event;
+@end
+
 @implementation DragRegionView
 
 - (BOOL)mouseDownCanMoveWindow