diff --git a/include/wx/platform.h b/include/wx/platform.h
index eb4d4864c0..bb671f0158 100644
--- a/include/wx/platform.h
+++ b/include/wx/platform.h
@@ -310,7 +310,7 @@
  */
 #elif defined(__UNIX__) || defined(__unix) || defined(__unix__) || \
       defined(____SVR4____) || defined(__LINUX__) || defined(__sgi) || \
-      defined(__hpux) || defined(sun) || defined(__SUN__) || defined(_AIX) || \
+      defined(__hpux) || defined(__sun) || defined(__SUN__) || defined(_AIX) || \
       defined(__EMX__) || defined(__VMS) || defined(__BEOS__) || defined(__MACH__)
 
 #    define __UNIX_LIKE__