diff --git a/utils/dialoged/src/reswrite.cpp b/utils/dialoged/src/reswrite.cpp
index a0a619c393..d2fed79bdc 100644
--- a/utils/dialoged/src/reswrite.cpp
+++ b/utils/dialoged/src/reswrite.cpp
@@ -36,7 +36,9 @@
 
 #include "reseditr.h"
 
+#if !defined(__WXMSW__) && defined(__WXMAC__)
 static char wxBuffer[512];
+#endif
 
 char *SafeString(char *s);
 char *SafeWord(const wxString& s);