diff --git a/include/v8-typed-array.h b/include/v8-typed-array.h
index bd8245062ff..4e78915b896 100644
--- a/include/v8-typed-array.h
+++ b/include/v8-typed-array.h
@@ -23,10 +23,10 @@ class V8_EXPORT TypedArray : public ArrayBufferView {
    * The largest supported typed array byte size. Each subclass defines a
    * type-specific kMaxLength for the maximum length that can be passed to New.
    */
-#if V8_ENABLE_SANDBOX
+#ifdef V8_ENABLE_SANDBOX
   static constexpr size_t kMaxByteLength =
       internal::kMaxSafeBufferSizeForSandbox;
-#elif V8_HOST_ARCH_32_BIT
+#elif defined(V8_HOST_ARCH_32_BIT)
   static constexpr size_t kMaxByteLength = std::numeric_limits<int>::max();
 #else
   // The maximum safe integer (2^53 - 1).