diff --git a/src/mac/carbon/dcclient.cpp b/src/mac/carbon/dcclient.cpp
index 2d75ff390e..07d0f431fc 100644
--- a/src/mac/carbon/dcclient.cpp
+++ b/src/mac/carbon/dcclient.cpp
@@ -18,6 +18,7 @@
 #include "wx/region.h"
 #include "wx/window.h"
 #include "wx/toplevel.h"
+#include "wx/settings.h"
 #include <math.h>
 #include "wx/mac/private.h"