diff --git a/check_i18n.py b/check_i18n.py
index 788bd6dd6..3e002522d 100755
--- a/check_i18n.py
+++ b/check_i18n.py
@@ -59,6 +59,8 @@ keys_translated = get_i18n_keys(i18n_us_content)
 write_expected_i18n_en_US(i18n_us_content, expected_i18n_keys)
 
 print("Size of expected %d / in real US file %s" % (len(expected_i18n_keys), len(keys_translated)))
-print("I18n not translated = %d"  % (len(set(expected_i18n_keys) - set(keys_translated))))
+not_translated = set(expected_i18n_keys) - set(keys_translated)
+print("I18n not translated = %d" % len(not_translated))
+print("Missing keys:", sorted(not_translated))
 print("I18n not used = %d"  % (len(set(keys_translated) - set(expected_i18n_keys))))
-sys.exit(0 if len(set(expected_i18n_keys) - set(keys_translated)) == 0 else 1)
\ No newline at end of file
+sys.exit(0 if len(not_translated) == 0 else 1)
\ No newline at end of file