diff --git a/mozilla/widget/src/mac/nsCheckButton.cpp b/mozilla/widget/src/mac/nsCheckButton.cpp
index d2565bd088a..9e5e925baa3 100644
--- a/mozilla/widget/src/mac/nsCheckButton.cpp
+++ b/mozilla/widget/src/mac/nsCheckButton.cpp
@@ -17,7 +17,9 @@
  */
 
 #include "nsCheckButton.h"
-
+#if TARGET_CARBON
+#include <ControlDefinitions.h>
+#endif
 
 NS_IMPL_ADDREF(nsCheckButton);
 NS_IMPL_RELEASE(nsCheckButton);
diff --git a/mozilla/widget/src/mac/nsRadioButton.cpp b/mozilla/widget/src/mac/nsRadioButton.cpp
index a4f63b15a4e..ac20d3adfb0 100644
--- a/mozilla/widget/src/mac/nsRadioButton.cpp
+++ b/mozilla/widget/src/mac/nsRadioButton.cpp
@@ -17,6 +17,9 @@
  */
 
 #include "nsRadioButton.h"
+#if TARGET_CARBON
+#include <ControlDefinitions.h>
+#endif
 
 NS_IMPL_ADDREF(nsRadioButton);
 NS_IMPL_RELEASE(nsRadioButton);