diff --git a/tools/update-po.sh b/tools/update-po.sh
index 2821e45f..4fc9e533 100755
--- a/tools/update-po.sh
+++ b/tools/update-po.sh
@@ -1,6 +1,8 @@
 
 find pisi -iname '*.py' | grep -v pisi/cli/commands.py >exclude
 python tools/pygettext.py -D -X exclude -o po/pisi.pot pisi pisi-cli scripts /usr/lib/python2.4/optparse.py
-msgmerge -U po/tr.po po/pisi.pot
-msgmerge -U po/nl.po po/pisi.pot
+for lang in po/*.po
+do
+    msgmerge -U $lang po/pisi.pot
+done
 rm exclude