diff --git a/killer/killer.cpp b/killer/killer.cpp
index 651b71328f..bb58a7b044 100644
--- a/killer/killer.cpp
+++ b/killer/killer.cpp
@@ -45,11 +45,11 @@ static const KCmdLineOptions options[] =
 
 int main( int argc, char* argv[] )
     {
+    KGlobal::locale()->setMainCatalogue( "kwin" ); // the messages are in kwin's .po file
     KCmdLineArgs::init( argc, argv, "kwin_killer_helper", I18N_NOOP( "KWin" ),
 	I18N_NOOP( "KWin helper utility" ), "1.0" );
     KCmdLineArgs::addCmdLineOptions( options );
     KApplication app;
-    KGlobal::locale()->insertCatalogue( "kwin" ); // the messages are in kwin's .po file
     KCmdLineArgs* args = KCmdLineArgs::parsedArgs();
     QCString hostname = args->getOption( "hostname" );
     bool pid_ok = false;