--- a/mkspecs/features/dbusinterfaces.prf	Tue Jul 06 15:10:48 2010 +0300
+++ b/mkspecs/features/dbusinterfaces.prf	Wed Aug 18 10:37:55 2010 +0300
@@ -4,7 +4,7 @@
 
 for(DBUS_INTERFACE, $$list($$unique(DBUS_INTERFACES))) {
 
-    !contains(DBUS_INTERFACE, .*\w\.xml$) {
+    !contains(DBUS_INTERFACE, .*\\w\\.xml$) {
         warning("Invalid D-BUS interface : '$${DBUS_INTERFACE}', please use 'com.mydomain.myinterface.xml' instead.")
         next()
     }