diff --git a/autobuild.xml b/autobuild.xml
index 0e4db1bdca..94c2fe1b9d 100644
--- a/autobuild.xml
+++ b/autobuild.xml
@@ -2317,7 +2317,6 @@
                   <string>-G</string>
                   <string>"Visual Studio 10"</string>
                   <string>-DUNATTENDED:BOOL=ON</string>
-                  <string>-DINSTALL_PROPRIETARY=TRUE</string>
                   <string>-DUSE_KDU=FALSE</string>
                   <string>-DFMOD=FALSE</string>
                 </array>