diff --git a/unit_test/test/json_test.cpp b/unit_test/test/json_test.cpp
index 522fe2c..9afe384 100644
--- a/unit_test/test/json_test.cpp
+++ b/unit_test/test/json_test.cpp
@@ -31,10 +31,6 @@ TEST(json_encode_test, retOK)
 
 auto main(int argc, char* argv[]) -> int
 {
-    int ret;
-
     testing::InitGoogleTest(&argc, argv);
-    ret = RUN_ALL_TESTS();
-
-    return 0;
+    return RUN_ALL_TESTS();
 }