diff --git a/include/wx/mac/setup0.h b/include/wx/mac/setup0.h
index 381a24787c..6d5991fc9d 100644
--- a/include/wx/mac/setup0.h
+++ b/include/wx/mac/setup0.h
@@ -270,7 +270,7 @@
 // Use standard C++ streams if 1. If 0, use wxWin streams implementation only.
 #define wxUSE_STD_IOSTREAM  0
 
-// Enable converion to  standard C++ string if 1.
+// Enable conversion to  standard C++ string if 1.
 #define wxUSE_STD_STRING  0
 
 // ----------------------------------------------------------------------------