diff --git a/test/fuzztest/wantsenderstub_fuzzer/wantsenderstub_fuzzer.cpp b/test/fuzztest/wantsenderstub_fuzzer/wantsenderstub_fuzzer.cpp
index d733068a59..cc82ecbfc3 100644
--- a/test/fuzztest/wantsenderstub_fuzzer/wantsenderstub_fuzzer.cpp
+++ b/test/fuzztest/wantsenderstub_fuzzer/wantsenderstub_fuzzer.cpp
@@ -86,7 +86,7 @@ extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
         return 0;
     }
 
-    char* ch = (char*)malloc(size + 1);
+    char* ch = static_cast<char*>(malloc(size + 1));
     if (ch == nullptr) {
         std::cout << "malloc failed." << std::endl;
         return 0;