diff --git a/src/osx/cocoa/window.mm b/src/osx/cocoa/window.mm
index 8bbb6b6226..23c3cd460d 100644
--- a/src/osx/cocoa/window.mm
+++ b/src/osx/cocoa/window.mm
@@ -1266,7 +1266,7 @@ void wxWidgetCocoaImpl::controlTextDidChange()
 #else
 
 #define wxOSX_CLASS_ADD_METHOD( c, s, i, t ) \
-    { s, t, i },
+    { s, (char*) t, i },
 
 #endif