--- qt-everywhere-opensource-src-5.1.0-old/qtbase/mkspecs/features/dbuscommon.pri	2013-07-02 08:09:32 +0100
+++ qt-everywhere-opensource-src-5.1.0-new/qtbase/mkspecs/features/dbuscommon.pri	2013-08-13 23:39:05 +0100
@@ -72,7 +72,7 @@
     $${group}_moc.output = $$moc_header.output
     $${group}_moc.input = $${GROUP}_HEADERS
     $${group}_moc.variable_out = GENERATED_SOURCES
-    $${group}_moc.name = $$moc_header.name
+    $${group}_moc.name = $${GROUP}_$$moc_header.name
 
     QMAKE_EXTRA_COMPILERS += $${group}_header $${group}_source $${group}_moc
 }