diff --git a/src/mac/carbon/toplevel.cpp b/src/mac/carbon/toplevel.cpp
index a70e3bbc11..f4e54270cd 100644
--- a/src/mac/carbon/toplevel.cpp
+++ b/src/mac/carbon/toplevel.cpp
@@ -43,6 +43,9 @@
 #include "wx/tooltip.h"
 #include "wx/dnd.h"
 
+#include "ToolUtils.h"
+
+
 #define wxMAC_DEBUG_REDRAW 0
 #ifndef wxMAC_DEBUG_REDRAW
 #define wxMAC_DEBUG_REDRAW 0
diff --git a/src/mac/toplevel.cpp b/src/mac/toplevel.cpp
index a70e3bbc11..f4e54270cd 100644
--- a/src/mac/toplevel.cpp
+++ b/src/mac/toplevel.cpp
@@ -43,6 +43,9 @@
 #include "wx/tooltip.h"
 #include "wx/dnd.h"
 
+#include "ToolUtils.h"
+
+
 #define wxMAC_DEBUG_REDRAW 0
 #ifndef wxMAC_DEBUG_REDRAW
 #define wxMAC_DEBUG_REDRAW 0