diff --git a/src/commands/cmd_zset.cc b/src/commands/cmd_zset.cc
index 0109a6820d3..1b8ee64c360 100644
--- a/src/commands/cmd_zset.cc
+++ b/src/commands/cmd_zset.cc
@@ -1357,7 +1357,6 @@ class CommandZScan : public CommandSubkeyScanBase {
   }
 };
 
-
 class CommandZDiff : public Commander {
  public:
   Status Parse(const std::vector<std::string> &args) override {
@@ -1406,9 +1405,9 @@ class CommandZDiff : public Commander {
   }
 
  protected:
-  size_t numkeys_ {0};
+  size_t numkeys_ = 0;
   std::vector<rocksdb::Slice> keys_;
-  bool with_scores_ {false};
+  bool with_scores_ = false;
 };
 
 class CommandZDiffStore : public Commander {
@@ -1426,12 +1425,6 @@ class CommandZDiffStore : public Commander {
       j++;
     }
 
-    if (auto i = 2 + numkeys_; i < args.size()) {
-      if (util::ToLower(args[i]) == "withscores") {
-        with_scores_ = true;
-      }
-    }
-
     return Commander::Parse(args);
   }
 
@@ -1453,9 +1446,8 @@ class CommandZDiffStore : public Commander {
   }
 
  protected:
-  size_t numkeys_ {0};
+  size_t numkeys_ = 0;
   std::vector<rocksdb::Slice> keys_;
-  bool with_scores_ {false};
 };
 
 REDIS_REGISTER_COMMANDS(MakeCmdAttr<CommandZAdd>("zadd", -4, "write", 1, 1, 1),
@@ -1489,7 +1481,7 @@ REDIS_REGISTER_COMMANDS(MakeCmdAttr<CommandZAdd>("zadd", -4, "write", 1, 1, 1),
                         MakeCmdAttr<CommandZMScore>("zmscore", -3, "read-only", 1, 1, 1),
                         MakeCmdAttr<CommandZScan>("zscan", -3, "read-only", 1, 1, 1),
                         MakeCmdAttr<CommandZUnionStore>("zunionstore", -4, "write", CommandZUnionStore::Range),
-                        MakeCmdAttr<CommandZUnion>("zunion", -3, "read-only", CommandZUnion::Range), 
+                        MakeCmdAttr<CommandZUnion>("zunion", -3, "read-only", CommandZUnion::Range),
                         MakeCmdAttr<CommandZDiff>("zdiff", -3, "read-only", CommandZDiff::Range),
                         MakeCmdAttr<CommandZDiffStore>("zdiffstore", -3, "read-only", CommandZDiffStore::Range), )
 
diff --git a/src/types/redis_zset.cc b/src/types/redis_zset.cc
index 389823fab73..d231c5a3a62 100644
--- a/src/types/redis_zset.cc
+++ b/src/types/redis_zset.cc
@@ -851,7 +851,6 @@ rocksdb::Status ZSet::MGet(const Slice &user_key, const std::vector<Slice> &memb
   return rocksdb::Status::OK();
 }
 
-
 rocksdb::Status ZSet::Diff(const std::vector<Slice> &keys, MemberScores *members) {
   std::vector<std::string> lock_keys;
   lock_keys.reserve(keys.size());
@@ -864,14 +863,14 @@ rocksdb::Status ZSet::Diff(const std::vector<Slice> &keys, MemberScores *members
   members->clear();
   MemberScores source_member_scores;
   RangeScoreSpec spec;
-  uint64_t size {0};
+  uint64_t size = 0;
   auto s = RangeByScore(keys[0], spec, &source_member_scores, &size);
   if (!s.ok()) return s;
 
-  std::map<std::string, bool> exclude_members {};
-  MemberScores target_member_scores {};
+  std::map<std::string, bool> exclude_members;
+  MemberScores target_member_scores;
   for (size_t i = 1; i < keys.size(); i++) {
-    uint64_t size {0};
+    uint64_t size = 0;
     s = RangeByScore(keys[i], spec, &target_member_scores, &size);
     if (!s.ok()) return s;
     for (const auto &member_score : target_member_scores) {
diff --git a/tests/cppunit/types/zset_test.cc b/tests/cppunit/types/zset_test.cc
index 71d5029afee..a69a1ec7776 100644
--- a/tests/cppunit/types/zset_test.cc
+++ b/tests/cppunit/types/zset_test.cc
@@ -434,18 +434,17 @@ TEST_F(RedisZSetTest, Rank) {
   auto s = zset_->Del(key_);
 }
 
-
 TEST_F(RedisZSetTest, Diff) {
   uint64_t ret = 0;
 
   std::string k1 = "key1";
-  std::vector<MemberScore> k1_mscores {{"a", -100.1}, {"b", -100.1}, {"c", 0}, {"d", 1.234}};
+  std::vector<MemberScore> k1_mscores = {{"a", -100.1}, {"b", -100.1}, {"c", 0}, {"d", 1.234}};
 
   std::string k2 = "key2";
-  std::vector<MemberScore> k2_mscores {{"c", -150.1}};
+  std::vector<MemberScore> k2_mscores = {{"c", -150.1}};
 
   std::string k3 = "key3";
-  std::vector<MemberScore> k3_mscores {{"a", -1000.1}, {"c", -100.1}, {"e", 8000.9}};
+  std::vector<MemberScore> k3_mscores = {{"a", -1000.1}, {"c", -100.1}, {"e", 8000.9}};
 
   auto s = zset_->Add(k1, ZAddFlags::Default(), &k1_mscores, &ret);
   EXPECT_EQ(ret, 4);
@@ -458,7 +457,7 @@ TEST_F(RedisZSetTest, Diff) {
   zset_->Diff({k1, k2, k3}, &mscores);
 
   EXPECT_EQ(2, mscores.size());
-  std::vector<MemberScore> expected_mscores {{"b", -100.1}, {"d", 1.234}};
+  std::vector<MemberScore> expected_mscores = {{"b", -100.1}, {"d", 1.234}};
   int index = 0;
   for (auto mscore : expected_mscores) {
     EXPECT_EQ(mscore.member, mscores[index].member);