diff --git a/src/common/utilscmn.cpp b/src/common/utilscmn.cpp
index 1867cc1d44..2b812d81bf 100644
--- a/src/common/utilscmn.cpp
+++ b/src/common/utilscmn.cpp
@@ -105,7 +105,7 @@
 // string functions
 // ----------------------------------------------------------------------------
 
-#if defined(__WXMAC__) && !defined(__DARWIN)
+#if defined(__WXMAC__) && !defined(__DARWIN__)
 int strcasecmp(const char *str_1, const char *str_2)
 {
   register char c1, c2;