1 files changed, 10 insertions, 2 deletions
diff --git a/tools/finalize.py b/tools/finalize.py
index 516a2fb5..5a4df5df 100644
--- a/tools/finalize.py
+++ b/tools/finalize.py
@@ -42,6 +42,7 @@ def update_changelog():
     cmd = [
         sys.executable, '-m',
         'towncrier',
+        'build',
         '--version', get_version(),
         '--yes',
     ]
@@ -79,11 +80,18 @@ def check_changes():
     """
     allowed = 'deprecation', 'breaking', 'change', 'doc', 'misc'
     except_ = 'README.rst', '.gitignore'
-    assert all(
-        any(key in file.name for key in allowed)
+    news_fragments = (
+        file
         for file in pathlib.Path('changelog.d').iterdir()
         if file.name not in except_
     )
+    unrecognized = [
+        str(file)
+        for file in news_fragments
+        if not any(f".{key}" in file.suffixes for key in allowed)
+    ]
+    if unrecognized:
+        raise ValueError(f"Some news fragments have invalid names: {unrecognized}")
 
 
 if __name__ == '__main__':