diff --git a/build/osx/wxcarbon.xcconfig b/build/osx/wxcarbon.xcconfig
index 99bc902e9f..398e6733a6 100644
--- a/build/osx/wxcarbon.xcconfig
+++ b/build/osx/wxcarbon.xcconfig
@@ -4,7 +4,7 @@ WXTOOLKITUPPER = CARBON
 #include "wx.xcconfig"
 
 MACOSX_DEPLOYMENT_TARGET = 10.5
-SDKROOT = macosx
+SDKROOT = macosx10.7
 
 GCC_VERSION[arch=ppc] = 4.0