diff --git a/alembic/env.py b/alembic/env.py
index 55ff9f8..6aee57c 100644
--- a/alembic/env.py
+++ b/alembic/env.py
@@ -28,7 +28,7 @@ target_metadata = None
 
 
 def run_migrations_offline():
-    """Run migrations in 'offline' mode
+    """Run migrations in 'offline' mode.
 
     This configures the context with just a URL
     and not an Engine, though an Engine is acceptable