diff --git a/src/widgets/styles/styles.pri b/src/widgets/styles/styles.pri
index b39b17fd86..05568e8408 100644
--- a/src/widgets/styles/styles.pri
+++ b/src/widgets/styles/styles.pri
@@ -54,12 +54,6 @@ contains( styles, mac ) {
         styles/qmacstyle_mac_p.h \
         styles/qmacstyle_mac_p_p.h
         OBJECTIVE_SOURCES += styles/qmacstyle_mac.mm
-
-    !contains( styles, windows ) {
-        message( mac requires windows )
-        styles += windows
-        DEFINES+= QT_STYLE_WINDOWS
-    }
 } else {
     DEFINES += QT_NO_STYLE_MAC
 }