diff --git a/po/Makefile.am b/po/Makefile.am
index 224f16e99347993867b4ef1f44b9b2ec2d41cf8f..a31f8ba584b64452e10862efcf5a94059a30b726 100644
--- a/po/Makefile.am
+++ b/po/Makefile.am
@@ -32,6 +32,7 @@ XGETTEXT_ARGS = \
 	--package-name="$(PACKAGE_NAME)" \
 	--package-version="$(PACKAGE_VERSION)" \
 	--msgid-bugs-address="$(MSGID_BUGS_ADDRESS)" \
+	--sort-output \
 	$(NULL)
 
 SED_PO_FIXUP_ARGS = \