diff --git a/src/plugins/bearer/corewlan/corewlan.pro b/src/plugins/bearer/corewlan/corewlan.pro
index 0d11b1e9d3..cbb6216fd7 100644
--- a/src/plugins/bearer/corewlan/corewlan.pro
+++ b/src/plugins/bearer/corewlan/corewlan.pro
@@ -7,7 +7,6 @@ LIBS += -framework Foundation -framework SystemConfiguration
 contains(QT_CONFIG, corewlan) {
     isEmpty(QMAKE_MAC_SDK)|contains(QMAKE_MAC_SDK, "/Developer/SDKs/MacOSX10.6.sdk") {
          LIBS += -framework CoreWLAN -framework Security
-         DEFINES += MAC_SDK_10_6
     }
 }