diff --git a/src/widgets/styles/styles.pri b/src/widgets/styles/styles.pri
index a207cd27619..109621988ec 100644
--- a/src/widgets/styles/styles.pri
+++ b/src/widgets/styles/styles.pri
@@ -40,7 +40,7 @@ contains( styles, all ) {
     styles = fusion mac windows windowsxp windowsvista
 }
 
-!mac:styles -= mac
+!macx:styles -= mac
 
 contains(QT_CONFIG, gtkstyle) {
     QMAKE_CXXFLAGS += $$QT_CFLAGS_QGTKSTYLE