diff --git a/Tools/i18n/pygettext.py b/Tools/i18n/pygettext.py
index 422d773e813..546874c5990 100755
--- a/Tools/i18n/pygettext.py
+++ b/Tools/i18n/pygettext.py
@@ -449,3 +449,5 @@ class Options:
 
 if __name__ == '__main__':
     main()
+    # some more test strings
+    _(u'a unicode string')