diff --git a/config/config_mgmt.py b/config/config_mgmt.py
index c9db79ea90e7..5e35f299ae7b 100644
--- a/config/config_mgmt.py
+++ b/config/config_mgmt.py
@@ -83,7 +83,7 @@ def __init__(self, source="configDB", debug=False, allowTablesWithoutYang=True):
     def __del__(self):
         pass
 
-    def tablesWithoutYang(self):
+    def tablesWithOutYang(self):
         '''
         Return tables loaded in config for which YANG model does not exist.
 
diff --git a/sonic-utilities-tests/config_mgmt_test.py b/sonic-utilities-tests/config_mgmt_test.py
index aec7f75e3057..4133ab2194ef 100644
--- a/sonic-utilities-tests/config_mgmt_test.py
+++ b/sonic-utilities-tests/config_mgmt_test.py
@@ -32,7 +32,7 @@ def test_table_without_yang(self):
         self.updateConfig(curConfig, unknown)
         self.writeJson(curConfig, config_mgmt.CONFIG_DB_JSON_FILE)
         cm = config_mgmt.ConfigMgmt(source=config_mgmt.CONFIG_DB_JSON_FILE)
-        #assert "unknown_table" in cm.tablesWithoutYang()
+        assert "unknown_table" in cm.tablesWithOutYang()
         return
 
     def test_search_keys(self):