diff --git a/Messages.sh b/Messages.sh
index 19e414cade..f05f27e15c 100644
--- a/Messages.sh
+++ b/Messages.sh
@@ -1,3 +1,3 @@
 #! /usr/bin/env bash
 $EXTRACTRC *.kcfg >> rc.cpp
-$XGETTEXT *.h *.cpp killer/*.cpp tabbox/*.cpp -o $podir/kwin.pot
+$XGETTEXT *.h *.cpp killer/*.cpp tabbox/*.cpp scripting/*.cpp -o $podir/kwin.pot
diff --git a/killer/killer.cpp b/killer/killer.cpp
index 9165b387a4..0c3ca043ec 100644
--- a/killer/killer.cpp
+++ b/killer/killer.cpp
@@ -36,6 +36,7 @@ DEALINGS IN THE SOFTWARE.
 
 int main(int argc, char* argv[])
 {
+    KLocalizedString::setApplicationDomain("kwin");
     QApplication app(argc, argv);
     QApplication::setWindowIcon(QIcon::fromTheme(QStringLiteral("kwin")));
     QCoreApplication::setApplicationName(QStringLiteral("kwin_killer_helper"));
diff --git a/main.cpp b/main.cpp
index 46a4829991..e8b68f15a5 100644
--- a/main.cpp
+++ b/main.cpp
@@ -413,6 +413,7 @@ KWIN_EXPORT int kdemain(int argc, char * argv[])
     mallopt(M_TRIM_THRESHOLD, 5*pagesize);
 #endif // M_TRIM_THRESHOLD
 
+    KLocalizedString::setApplicationDomain("kwin");
     QLoggingCategory::setFilterRules(QStringLiteral("aurorae.debug = true\n") +
                                      QStringLiteral("kwineffects.debug = true"));
 
@@ -536,12 +537,6 @@ KWIN_EXPORT int kdemain(int argc, char * argv[])
     KWin::SessionManager weAreIndeed;
 #endif
     KWin::SessionSaveDoneHelper helper;
-#warning insertCatalog needs porting
-#if KWIN_QT5_PORTING
-    KGlobal::locale()->insertCatalog("kwin_effects");
-    KGlobal::locale()->insertCatalog("kwin_scripts");
-    KGlobal::locale()->insertCatalog("kwin_scripting");
-#endif
 
     QString appname;
     if (KWin::screen_number == 0)