diff --git a/CMakeLists.txt b/CMakeLists.txt
index 2a58f19..7d0acf8 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -375,7 +375,7 @@ IF(WIN32 AND NOT ANDROID)
     #needed for net plugin
     SET (OSG_SOCKET_LIBS wsock32)
     # Both Cygwin and Msys need -DNOMINMAX ???
-    IF(UNIX)
+    IF(UNIX OR WIN32)
         ADD_DEFINITIONS(-DNOMINMAX)
     ENDIF()