diff --git a/src/bun.js/modules/NodeBufferModule.h b/src/bun.js/modules/NodeBufferModule.h
index 06546bd04691b..c82ce15fddb3e 100644
--- a/src/bun.js/modules/NodeBufferModule.h
+++ b/src/bun.js/modules/NodeBufferModule.h
@@ -169,7 +169,7 @@ DEFINE_NATIVE_MODULE(NodeBuffer) {
       JSC::jsNumber(MAX_ARRAY_BUFFER_SIZE));
 
   put(JSC::Identifier::fromString(vm, "kStringMaxLength"_s),
-      JSC::jsNumber(std::numeric_limits<unsigned>().max()));
+      JSC::jsNumber(WTF::String::MaxLength));
 
   JSC::JSObject *constants = JSC::constructEmptyObject(
       lexicalGlobalObject, globalObject->objectPrototype(), 2);
@@ -177,7 +177,7 @@ DEFINE_NATIVE_MODULE(NodeBuffer) {
                        JSC::jsNumber(MAX_ARRAY_BUFFER_SIZE));
   constants->putDirect(vm,
                        JSC::Identifier::fromString(vm, "MAX_STRING_LENGTH"_s),
-                       JSC::jsNumber(std::numeric_limits<unsigned>().max()));
+                       JSC::jsNumber(WTF::String::MaxLength));
 
   put(JSC::Identifier::fromString(vm, "constants"_s), constants);
 
diff --git a/test/js/node/buffer.test.js b/test/js/node/buffer.test.js
index 17f25ec067a9b..872391805152b 100644
--- a/test/js/node/buffer.test.js
+++ b/test/js/node/buffer.test.js
@@ -2003,9 +2003,9 @@ for (let withOverridenBufferWrite of [false, true]) {
 
       it("constants", () => {
         expect(BufferModule.constants.MAX_LENGTH).toBe(4294967296);
-        expect(BufferModule.constants.MAX_STRING_LENGTH).toBe(4294967295);
+        expect(BufferModule.constants.MAX_STRING_LENGTH).toBe(2147483647);
         expect(BufferModule.default.constants.MAX_LENGTH).toBe(4294967296);
-        expect(BufferModule.default.constants.MAX_STRING_LENGTH).toBe(4294967295);
+        expect(BufferModule.default.constants.MAX_STRING_LENGTH).toBe(2147483647);
       });
 
       it("File", () => {