diff --git a/python/uds.py b/python/uds.py
index d6c932d..a29de93 100644
--- a/python/uds.py
+++ b/python/uds.py
@@ -617,7 +617,7 @@ class UdsClient():
     }
 
   def link_control(self, link_control_type: LINK_CONTROL_TYPE, baud_rate_type: BAUD_RATE_TYPE=None):
-    data : Optional[bytes]
+    data: Optional[bytes]
 
     if link_control_type == LINK_CONTROL_TYPE.VERIFY_BAUDRATE_TRANSITION_WITH_FIXED_BAUDRATE:
       # baud_rate_type = BAUD_RATE_TYPE