diff --git a/src/effects/Contrast.h b/src/effects/Contrast.h
index 88263533b..c3d28db3c 100644
--- a/src/effects/Contrast.h
+++ b/src/effects/Contrast.h
@@ -9,7 +9,7 @@
 #ifndef __AUDACITY_CONTRAST_DIALOG__
 #define __AUDACITY_CONTRAST_DIALOG__
 
-#include "widgets/wxPanelWrapper.h"
+#include "../widgets/wxPanelWrapper.h"
 
 class wxButton;
 class wxSizer;