diff --git a/script/hassfest/metadata.py b/script/hassfest/metadata.py
index 48459eacb72664..88a433fe3fa208 100644
--- a/script/hassfest/metadata.py
+++ b/script/hassfest/metadata.py
@@ -30,7 +30,7 @@ def validate(integrations: dict[str, Integration], config: Config) -> None:
         if data["project"]["requires-python"] != required_py_version:
             config.add_error(
                 "metadata",
-                f"'project.requires-python' value doesn't match '{required_py_version}",
+                f"'project.requires-python' value doesn't match '{required_py_version}'",
             )
     except KeyError:
         config.add_error("metadata", "No 'options.python_requires' key found!")