diff --git a/src/entry/Maat_api.cpp b/src/entry/Maat_api.cpp
index deb334b..cf762db 100644
--- a/src/entry/Maat_api.cpp
+++ b/src/entry/Maat_api.cpp
@@ -604,7 +604,7 @@ int Maat_set_feather_opt(Maat_feather_t feather,enum MAAT_INIT_OPT type,const vo
 
 			md5_file(_feather->json_ctx.json_file, _feather->json_ctx.effective_json_md5);
 			MESA_handle_runtime_log(_feather->logger,RLOG_LV_INFO,maat_module ,
-							"Maat initial with JSON file %s md5: %s,generate index file %s OK.",
+							"Maat initial with JSON file %s md5: %s, generate index file %s OK.",
 							_feather->json_ctx.json_file,
 							_feather->json_ctx.effective_json_md5,
 							_feather->json_ctx.iris_file);
diff --git a/src/entry/Maat_rule.cpp b/src/entry/Maat_rule.cpp
index caf61fd..710470e 100644
--- a/src/entry/Maat_rule.cpp
+++ b/src/entry/Maat_rule.cpp
@@ -2463,6 +2463,7 @@ void update_group_rule(struct Maat_table_desc* table,const char* table_line,stru
 	struct db_group_rule_t db_group_rule;
 	struct Maat_table_runtime* table_rt=scanner->table_rt[table->table_id];
 	int ret=0;
+	memset(&db_group_rule, 0, sizeof(db_group_rule));
 	ret=sscanf(table_line,"%d\t%d\t%d\t%d", &(db_group_rule.group_id),
 											&(db_group_rule.compile_id),
 											&(db_group_rule.is_valid),
diff --git a/test/maat_json.json b/test/maat_json.json
index 38f4bd6..dbd16f3 100644
--- a/test/maat_json.json
+++ b/test/maat_json.json
@@ -573,6 +573,47 @@
                     ]
                 }
             ]
+        },
+        {
+            "compile_id": 143,
+            "service": 1,
+            "action": 1,
+            "do_blacklist": 1,
+            "do_log": 1,
+            "user_region": "NOT-logic-test",
+            "is_valid": "yes",
+            "groups": [
+                {
+                		"not_flag":0,
+                    "regions": [
+                        {
+                            "table_name": "HTTP_URL",
+                            "table_type": "string",
+                            "table_content": {
+                                "keywords": "must-contained-string-11111",
+                                "expr_type": "none",
+                                "match_method": "sub",
+                                "format": "uncase plain"
+                            }
+                        }
+                    ]
+                },
+                {
+                		"not_flag":1,
+                    "regions": [
+                        {
+                            "table_name": "HTTP_URL",
+                            "table_type": "string",
+                            "table_content": {
+                                "keywords": "must-not-contained-string-22222",
+                                "expr_type": "none",
+                                "match_method": "sub",
+                                "format": "uncase plain"
+                            }
+                        }
+                    ]
+                }
+            ]
         }
     ],
     "plugin_table": [