diff --git a/src/entry/Maat_rule.cpp b/src/entry/Maat_rule.cpp
index 3b45de4..988184b 100644
--- a/src/entry/Maat_rule.cpp
+++ b/src/entry/Maat_rule.cpp
@@ -32,7 +32,7 @@
 #include "stream_fuzzy_hash.h"
 #include "gram_index_engine.h"
 
-int MAAT_FRAME_VERSION_2_5_20181205=1;
+int MAAT_FRAME_VERSION_2_5_20181211=1;
 
 const char* CHARSET_STRING[]={"NONE","gbk","big5","unicode","utf8","bin",
 							"unicode_ascii_esc","unicode_ascii_aligned","unicode_ncr_dec","unicode_ncr_hex","url_encode_gb2312","url_encode_utf8",""};
diff --git a/test/test_maatframe.cpp b/test/test_maatframe.cpp
index 2e67274..51894b5 100644
--- a/test/test_maatframe.cpp
+++ b/test/test_maatframe.cpp
@@ -1185,7 +1185,11 @@ TEST_F(MaatCmdTest, SetExpr)
 	output_id_cnt=Maat_cmd_select(feather,label_id, output_ids, 4);
 	EXPECT_EQ(output_id_cnt, 2);
 	EXPECT_TRUE(output_ids[0]==config_id||output_ids[0]==config_id-1);
-
+	struct Maat_cmd_key* keys=NULL;
+	output_id_cnt=Maat_cmd_key_select(feather,label_id, &keys);
+	EXPECT_TRUE(keys[0].rule_id==config_id||keys[0].rule_id==config_id-1);
+	
+	Maat_cmd_key_free(&keys, output_id_cnt);
 	usleep(WAIT_FOR_EFFECTIVE_US);//waiting for commands go into effect	
 	del_command(feather, config_id-1);
 	del_command(feather, config_id);