diff --git a/src/pycalver/cli.py b/src/pycalver/cli.py
index a42322b..18eb917 100755
--- a/src/pycalver/cli.py
+++ b/src/pycalver/cli.py
@@ -655,3 +655,7 @@ def bump(
     commit_message = cfg.commit_message.format(**commit_message_kwargs)
 
     _try_bump(cfg, new_version, commit_message, allow_dirty)
+
+
+if __name__ == '__main__':
+    cli()
diff --git a/src/pycalver/v2rewrite.py b/src/pycalver/v2rewrite.py
index 2be2022..440b146 100644
--- a/src/pycalver/v2rewrite.py
+++ b/src/pycalver/v2rewrite.py
@@ -51,7 +51,6 @@ def rewrite_lines(
                 + regexfmt.pyexpr_regex(nmp.regexp.pattern)
             )
             logger.error(msg)
-            logger.error(msg)
         raise rewrite.NoPatternMatch("Invalid pattern(s)")
     else:
         return new_lines