diff --git a/tdecore/tdehw/networkbackends/network-manager/dbus-introspection/CMakeLists.txt b/tdecore/tdehw/networkbackends/network-manager/dbus-introspection/CMakeLists.txt
index 8efdd6031..c420c5e75 100644
--- a/tdecore/tdehw/networkbackends/network-manager/dbus-introspection/CMakeLists.txt
+++ b/tdecore/tdehw/networkbackends/network-manager/dbus-introspection/CMakeLists.txt
@@ -32,6 +32,13 @@ function( add_dbus_xml option basename classname namespace xmlfile )
   add_custom_command( OUTPUT ${basename}.cpp ${basename}.h
     COMMAND ${DBUSXML2QT3_EXECUTABLE} -${option} ${basename} ${classname} -N ${namespace} ${INTROSPECTIONPATH}/${xmlfile} 2>/dev/null
     DEPENDS ${INTROSPECTIONPATH}/${xmlfile} )
+  if( "${option}" STREQUAL "p" )
+    add_custom_command( OUTPUT ${basename}.moc
+      COMMAND ${TMOC_EXECUTABLE} ${basename}.h -o ${basename}.moc
+      DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/${basename}.h )
+    set_property( SOURCE ${CMAKE_CURRENT_BINARY_DIR}/${basename}.cpp APPEND
+      PROPERTY OBJECT_DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/${basename}.moc )
+  endif( )
 endfunction( )
 
 add_dbus_xml( p networkmanagerproxy NetworkManagerProxy DBus nm-manager.xml )
@@ -52,16 +59,6 @@ add_dbus_xml( p networkmanagersettings SettingsInterface DBus nm-settings.xml )
 add_dbus_xml( p connectionsettings ConnectionSettingsInterface DBus nm-settings-connection.xml )
 
 
-# generate moc files
-
-set( MOCHEADERS accesspointproxy.h deviceproxy.h networkmanagerproxy.h networkmanagerpppproxy.h bluetoothproxy.h olpcmeshproxy.h ethernetproxy.h
-  infinibandproxy.h wifiproxy.h wimaxproxy.h activeconnectionproxy.h vpnconnectionproxy.h vpnpluginproxy.h modemproxy.h
-  networkmanagersettings.h connectionsettings.h )
-
-foreach( _header_file ${MOCHEADERS} )
-  tde_moc( MOCSOURCES ${CMAKE_CURRENT_BINARY_DIR}/${_header_file} )
-endforeach( )
-
 # build the library
 
 tde_add_library( tdenm_dbus STATIC_PIC
@@ -71,5 +68,5 @@ tde_add_library( tdenm_dbus STATIC_PIC
     infinibandproxy.cpp wifiproxy.cpp wimaxproxy.cpp accesspointproxy.cpp
     networkmanagersettings.cpp connectionsettings.cpp
     activeconnectionproxy.cpp vpnconnectionproxy.cpp
-    vpnpluginproxy.cpp modemproxy.cpp ${MOCSOURCES}
+    vpnpluginproxy.cpp modemproxy.cpp
 )