diff --git a/selfdrive/car/hyundai/values.py b/selfdrive/car/hyundai/values.py
index 4880e0b3e0..5617b1682b 100644
--- a/selfdrive/car/hyundai/values.py
+++ b/selfdrive/car/hyundai/values.py
@@ -345,10 +345,9 @@ FINGERPRINTS = {
 
 
 def get_platform_codes(fw_versions: List[bytes]) -> Set[bytes]:
-  platform_code_regex = b'(?<=' + HYUNDAI_VERSION_REQUEST_LONG[1:] + b')[A-Z]{2}[A-Za-z0-9]{0,2}'
   codes = set()
   for fw in fw_versions:
-    matches = re.findall(platform_code_regex, fw)
+    matches = re.findall(PLATFORM_CODE_PATTERN, fw)
     if len(matches):
       codes.add(matches[0])
   return codes
@@ -367,6 +366,8 @@ HYUNDAI_VERSION_REQUEST_MULTI = bytes([uds.SERVICE_TYPE.READ_DATA_BY_IDENTIFIER]
 
 HYUNDAI_VERSION_RESPONSE = bytes([uds.SERVICE_TYPE.READ_DATA_BY_IDENTIFIER + 0x40])
 
+PLATFORM_CODE_PATTERN = re.compile(b'(?<=' + HYUNDAI_VERSION_REQUEST_LONG[1:] + b')[A-Z]{2}[A-Za-z0-9]{0,2}')
+
 FW_QUERY_CONFIG = FwQueryConfig(
   requests=[
     # TODO: minimize shared whitelists for CAN and cornerRadar for CAN-FD