diff --git a/src/utils/key.ts b/src/utils/key.ts
index 243c0710..49588fc3 100644
--- a/src/utils/key.ts
+++ b/src/utils/key.ts
@@ -74,6 +74,8 @@ export function getByteForCode(
   const byte: number | undefined = basicKeyToByte[code];
   if (byte !== undefined) {
     return byte;
+  } else if (isHexCode(code)) {
+    return Number(code)
   } else if (isLayerCode(code)) {
     return getByteForLayerCode(code, basicKeyToByte);
   } else if (advancedStringToKeycode(code, basicKeyToByte) !== null) {
@@ -82,6 +84,10 @@ export function getByteForCode(
   throw `Could not find byte for ${code}`;
 }
 
+function isHexCode(code: string) {
+  return code.startsWith('0x')
+}
+
 function isLayerCode(code: string) {
   return /([A-Za-z]+)\((\d+)\)/.test(code);
 }