diff --git a/test/fuzzing/fuzz_amf.cpp b/test/fuzzing/fuzz_amf.cpp
index 60628ad124..c0d61017aa 100644
--- a/test/fuzzing/fuzz_amf.cpp
+++ b/test/fuzzing/fuzz_amf.cpp
@@ -25,7 +25,7 @@ extern "C" int
 LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
 {
     if (size < kMinInputLength || size > kMaxInputLength){
-        return 1;
+        return 0;
     }
 
     uint8_t mode = data[0] % 3;
diff --git a/test/fuzzing/fuzz_baidu_rpc.cpp b/test/fuzzing/fuzz_baidu_rpc.cpp
index 860746896b..fcfa7a42a0 100644
--- a/test/fuzzing/fuzz_baidu_rpc.cpp
+++ b/test/fuzzing/fuzz_baidu_rpc.cpp
@@ -25,7 +25,7 @@ extern "C" int
 LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
 {
     if (size < kMinInputLength || size > kMaxInputLength){
-        return 1;
+        return 0;
     }
 
     std::string input(reinterpret_cast<const char*>(data), size);
diff --git a/test/fuzzing/fuzz_butil.cpp b/test/fuzzing/fuzz_butil.cpp
index 470d1e99e0..2f01a97644 100644
--- a/test/fuzzing/fuzz_butil.cpp
+++ b/test/fuzzing/fuzz_butil.cpp
@@ -27,7 +27,7 @@ extern "C" int
 LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
 {
     if (size < kMinInputLength || size > kMaxInputLength){
-        return 1;
+        return 0;
     }
 
     std::string input(reinterpret_cast<const char*>(data), size);
diff --git a/test/fuzzing/fuzz_couchbase.cpp b/test/fuzzing/fuzz_couchbase.cpp
index f623c2ba4d..0663be68b3 100644
--- a/test/fuzzing/fuzz_couchbase.cpp
+++ b/test/fuzzing/fuzz_couchbase.cpp
@@ -25,7 +25,7 @@ extern "C" int
 LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
 {
     if (size < kMinInputLength || size > kMaxInputLength){
-        return 1;
+        return 0;
     }
 
     std::string input(reinterpret_cast<const char*>(data), size);
diff --git a/test/fuzzing/fuzz_esp.cpp b/test/fuzzing/fuzz_esp.cpp
index 9a26db86cf..905afeb01f 100644
--- a/test/fuzzing/fuzz_esp.cpp
+++ b/test/fuzzing/fuzz_esp.cpp
@@ -25,7 +25,7 @@ extern "C" int
 LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
 {
     if (size < kMinInputLength || size > kMaxInputLength){
-        return 1;
+        return 0;
     }
 
     std::string input(reinterpret_cast<const char*>(data), size);
diff --git a/test/fuzzing/fuzz_hpack.cpp b/test/fuzzing/fuzz_hpack.cpp
index 0ee8131aac..9203305562 100644
--- a/test/fuzzing/fuzz_hpack.cpp
+++ b/test/fuzzing/fuzz_hpack.cpp
@@ -25,7 +25,7 @@ extern "C" int
 LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
 {
     if (size < kMinInputLength || size > kMaxInputLength){
-        return 1;
+        return 0;
     }
 
     std::string input(reinterpret_cast<const char*>(data), size);
diff --git a/test/fuzzing/fuzz_http.cpp b/test/fuzzing/fuzz_http.cpp
index c621d504f7..cedcae581b 100644
--- a/test/fuzzing/fuzz_http.cpp
+++ b/test/fuzzing/fuzz_http.cpp
@@ -25,7 +25,7 @@ extern "C" int
 LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
 {
     if (size < kMinInputLength || size > kMaxInputLength){
-        return 1;
+        return 0;
     }
 
     std::string input(reinterpret_cast<const char*>(data), size);
diff --git a/test/fuzzing/fuzz_http_parser.cpp b/test/fuzzing/fuzz_http_parser.cpp
index 0c6b792c83..396b9e019b 100644
--- a/test/fuzzing/fuzz_http_parser.cpp
+++ b/test/fuzzing/fuzz_http_parser.cpp
@@ -34,7 +34,7 @@ extern "C" int
 LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
 {
     if (size < kMinInputLength || size > kMaxInputLength){
-        return 1;
+        return 0;
     }
 
     // Use first byte to select mode
diff --git a/test/fuzzing/fuzz_hulu.cpp b/test/fuzzing/fuzz_hulu.cpp
index 74f9bec2bf..1f009d9b4e 100644
--- a/test/fuzzing/fuzz_hulu.cpp
+++ b/test/fuzzing/fuzz_hulu.cpp
@@ -25,7 +25,7 @@ extern "C" int
 LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
 {
     if (size < kMinInputLength || size > kMaxInputLength){
-        return 1;
+        return 0;
     }
 
     std::string input(reinterpret_cast<const char*>(data), size);
diff --git a/test/fuzzing/fuzz_json.cpp b/test/fuzzing/fuzz_json.cpp
index 3a0335f523..6252837dd9 100644
--- a/test/fuzzing/fuzz_json.cpp
+++ b/test/fuzzing/fuzz_json.cpp
@@ -25,7 +25,7 @@ extern "C" int
 LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
 {
     if (size < kMinInputLength || size > kMaxInputLength){
-        return 1;
+        return 0;
     }
 
     std::string error;
diff --git a/test/fuzzing/fuzz_memcache.cpp b/test/fuzzing/fuzz_memcache.cpp
index 52bfbfab55..0cded3e976 100644
--- a/test/fuzzing/fuzz_memcache.cpp
+++ b/test/fuzzing/fuzz_memcache.cpp
@@ -25,7 +25,7 @@ extern "C" int
 LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
 {
     if (size < kMinInputLength || size > kMaxInputLength){
-        return 1;
+        return 0;
     }
 
     std::string input(reinterpret_cast<const char*>(data), size);
diff --git a/test/fuzzing/fuzz_mongo.cpp b/test/fuzzing/fuzz_mongo.cpp
index 18edc9362d..ea8207593f 100644
--- a/test/fuzzing/fuzz_mongo.cpp
+++ b/test/fuzzing/fuzz_mongo.cpp
@@ -25,7 +25,7 @@ extern "C" int
 LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
 {
     if (size < kMinInputLength || size > kMaxInputLength){
-        return 1;
+        return 0;
     }
 
     std::string input(reinterpret_cast<const char*>(data), size);
diff --git a/test/fuzzing/fuzz_redis.cpp b/test/fuzzing/fuzz_redis.cpp
index 6f4368dccc..1932f6141f 100644
--- a/test/fuzzing/fuzz_redis.cpp
+++ b/test/fuzzing/fuzz_redis.cpp
@@ -25,7 +25,7 @@ extern "C" int
 LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
 {
     if (size < kMinInputLength || size > kMaxInputLength){
-        return 1;
+        return 0;
     }
 
     std::string input(reinterpret_cast<const char*>(data), size);
diff --git a/test/fuzzing/fuzz_shead.cpp b/test/fuzzing/fuzz_shead.cpp
index fd5d8c9b72..05e5d455f9 100644
--- a/test/fuzzing/fuzz_shead.cpp
+++ b/test/fuzzing/fuzz_shead.cpp
@@ -26,7 +26,7 @@ extern "C" int
 LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
 {
     if (size < kMinInputLength || size > kMaxInputLength){
-        return 1;
+        return 0;
     }
 
     std::string input(reinterpret_cast<const char*>(data), size);
diff --git a/test/fuzzing/fuzz_sofa.cpp b/test/fuzzing/fuzz_sofa.cpp
index 84f39ec967..e0e29e063e 100644
--- a/test/fuzzing/fuzz_sofa.cpp
+++ b/test/fuzzing/fuzz_sofa.cpp
@@ -27,7 +27,7 @@ extern "C" int
 LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
 {
     if (size < kMinInputLength || size > kMaxInputLength){
-        return 1;
+        return 0;
     }
 
     std::string input(reinterpret_cast<const char*>(data), size);
diff --git a/test/fuzzing/fuzz_streaming.cpp b/test/fuzzing/fuzz_streaming.cpp
index e8b79b8a1d..2e136e1982 100644
--- a/test/fuzzing/fuzz_streaming.cpp
+++ b/test/fuzzing/fuzz_streaming.cpp
@@ -25,7 +25,7 @@ extern "C" int
 LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
 {
     if (size < kMinInputLength || size > kMaxInputLength){
-        return 1;
+        return 0;
     }
 
     std::string input(reinterpret_cast<const char*>(data), size);
diff --git a/test/fuzzing/fuzz_thrift.cpp b/test/fuzzing/fuzz_thrift.cpp
index c3928ffe53..c310d1e0ec 100644
--- a/test/fuzzing/fuzz_thrift.cpp
+++ b/test/fuzzing/fuzz_thrift.cpp
@@ -24,7 +24,7 @@ extern "C" int
 LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
 {
     if (size < kMinInputLength || size > kMaxInputLength){
-        return 1;
+        return 0;
     }
 
     std::string input(reinterpret_cast<const char*>(data), size);
diff --git a/test/fuzzing/fuzz_uri.cpp b/test/fuzzing/fuzz_uri.cpp
index 3db1dec214..1be3bb83ad 100644
--- a/test/fuzzing/fuzz_uri.cpp
+++ b/test/fuzzing/fuzz_uri.cpp
@@ -25,7 +25,7 @@ extern "C" int
 LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
 {
     if (size < kMinInputLength || size > kMaxInputLength){
-        return 1;
+        return 0;
     }
 
     char *data_in = (char *)malloc(size + 1);