diff --git a/tests/scripts/check_names.py b/tests/scripts/check_names.py
index 957701433..591389b96 100755
--- a/tests/scripts/check_names.py
+++ b/tests/scripts/check_names.py
@@ -138,7 +138,7 @@ class PatternMismatch(Problem): # pylint: disable=too-few-public-methods
     def __str__(self):
         if self.quiet:
             return (
-                "{0}:{1}:{3}"
+                "{0}:{1}:{2}"
                 .format(self.match.filename, self.match.pos[0], self.match.name)
             )