diff --git a/hblink.py b/hblink.py
index 8bce21f..8c59b41 100755
--- a/hblink.py
+++ b/hblink.py
@@ -397,7 +397,7 @@ class OPENBRIDGE(DatagramProtocol):
                         return
                     
                     #Discard bad source server 
-                    if (len(str(int.from_bytes(_source_server,'big'))) > 5) or (len(str(int.from_bytes(_source_server,'big'))) < 4): 
+                    if (len(str(int.from_bytes(_source_server,'big')) > 5) or (len(str(int.from_bytes(_source_server,'big')) < 4) ): 
                         logger.warning('(%s) Source Server should be 4 or 5 digits, discarding', self._system)
                         self.send_bcsq(_dst_id,_stream_id)
                         return