diff --git a/Libraries/LibJS/Bytecode/Operand.h b/Libraries/LibJS/Bytecode/Operand.h
index 74e2ad369c1..b5052f19012 100644
--- a/Libraries/LibJS/Bytecode/Operand.h
+++ b/Libraries/LibJS/Bytecode/Operand.h
@@ -13,7 +13,11 @@ namespace JS::Bytecode {
 
 class Operand {
 public:
-    enum class Type : u8 {
+    enum class Type
+#if ARCH(AARCH64)
+        : u8
+#endif
+    {
         Invalid,
         Register,
         Local,