diff --git a/src/node_errors.h b/src/node_errors.h
index f767b414fa1f34..fdfb670af636af 100644
--- a/src/node_errors.h
+++ b/src/node_errors.h
@@ -99,7 +99,7 @@ inline void THROW_ERR_SCRIPT_EXECUTION_TIMEOUT(Environment* env,
 inline v8::Local<v8::Value> ERR_BUFFER_TOO_LARGE(v8::Isolate* isolate) {
   char message[128];
   snprintf(message, sizeof(message),
-      "Cannot create a Buffer larger than 0x%lx bytes",
+      "Cannot create a Buffer larger than 0x%zx bytes",
       v8::TypedArray::kMaxLength);
   return ERR_BUFFER_TOO_LARGE(isolate, message);
 }