diff --git a/Platform/user/rpc/rpc_common.c b/Platform/user/rpc/rpc_common.c
index 93d406512..8e6c85d69 100755
--- a/Platform/user/rpc/rpc_common.c
+++ b/Platform/user/rpc/rpc_common.c
@@ -29,12 +29,16 @@ static int comp_num(const void *lhr, const void *rhr) {
 }
 
 const char* rpc_code_format(const ret_code code) {
-	struct ec key, *res;
-	key.code = code;
-	res = bsearch(&key, err_codes, nr_of_err, sizeof(struct ec), comp_num);
-	if (res) {
-		return res->name;
-	}
+	struct ec key = {0};
+	int i = 0;
+	
+	key.code = code;	
+	for(i = 0; i < nr_of_err; i++){
+        if(comp_num(&key, &err_codes[i]) == 0){
+            return err_codes[i].name;
+        }
+    }
+
 	return NULL;
 }