diff --git a/migrate/versioning/templates/manage/default.py_tmpl b/migrate/versioning/templates/manage/default.py_tmpl
index cc4d0e8..f6d75c5 100644
--- a/migrate/versioning/templates/manage/default.py_tmpl
+++ b/migrate/versioning/templates/manage/default.py_tmpl
@@ -7,4 +7,6 @@ del _vars['__template_name__']
 _vars.pop('repository_name', None)
 defaults = ", ".join(["%s='%s'" % var for var in _vars.iteritems()])
 }}
-main({{ defaults }})
+
+if __name__ == '__main__':
+    main({{ defaults }})
diff --git a/migrate/versioning/templates/manage/pylons.py_tmpl b/migrate/versioning/templates/manage/pylons.py_tmpl
index 475b8ce..cc2f788 100644
--- a/migrate/versioning/templates/manage/pylons.py_tmpl
+++ b/migrate/versioning/templates/manage/pylons.py_tmpl
@@ -26,4 +26,5 @@ conf_dict = ConfigLoader(conf_path).parser._sections['app:main']
 
 # migrate supports passing url as an existing Engine instance (since 0.6.0)
 # usage: migrate -c path/to/config.ini COMMANDS
-main(url=engine_from_config(conf_dict), repository=migrations.__path__[0],{{ defaults }})
+if __name__ == '__main__':
+    main(url=engine_from_config(conf_dict), repository=migrations.__path__[0],{{ defaults }})