diff --git a/btlejack/dissect/att.py b/btlejack/dissect/att.py
index be52f3f..11f881d 100755
--- a/btlejack/dissect/att.py
+++ b/btlejack/dissect/att.py
@@ -204,7 +204,7 @@ def to_bytes(self):
 
     @staticmethod
     def from_bytes(raw):
-        handle = unpack('<H', raw[1:])[0]
+        handle = unpack('<H', raw[1:3])[0]
         value = raw[3:]
         return WriteRequest(handle, value)
 
diff --git a/btlejack/supervisors.py b/btlejack/supervisors.py
index 54cf011..cea47f2 100755
--- a/btlejack/supervisors.py
+++ b/btlejack/supervisors.py
@@ -525,7 +525,7 @@ def __init__(self, payload):
                 else:
                     self.on_ll_packet(packet)
 
-    def on_connection(self, inita, adva, crc_init, interval, increment, channel_map):
+    def on_connection(self, inita, adva, crc_init, interval, increment, channel_map, timeout):
         print('Got connection !')
 
     def on_ll_packet(self, packet):