diff --git a/src/mac/carbon/radiobox.cpp b/src/mac/carbon/radiobox.cpp
index f1d1b2c722..685ce0a654 100644
--- a/src/mac/carbon/radiobox.cpp
+++ b/src/mac/carbon/radiobox.cpp
@@ -537,3 +537,5 @@ wxSize wxRadioBox::DoGetBestSize() const
 
     return wxSize(totWidth, totHeight);
 }
+
+#endif