diff --git a/peps/pep-0426.rst b/peps/pep-0426.rst
index 0acb6883cf4..255ce2d7e5c 100644
--- a/peps/pep-0426.rst
+++ b/peps/pep-0426.rst
@@ -630,7 +630,7 @@ characters:
 
 Source labels MUST start and end with an ASCII letter or digit.
 
-A regular expression to rnforce these constraints (when run with
+A regular expression to enforce these constraints (when run with
 ``re.IGNORECASE``) is::
 
     ^([A-Z0-9]|[A-Z0-9][A-Z0-9._-+]*[A-Z0-9])$