diff --git a/lbry/blob_exchange/server.py b/lbry/blob_exchange/server.py
index 152326fb4..6e4950eea 100644
--- a/lbry/blob_exchange/server.py
+++ b/lbry/blob_exchange/server.py
@@ -169,11 +169,11 @@ class BlobServer:
 
         async def _start_server():
             # checking if the port is in use
-            # thx https://stackoverflow.com/questions/2470971/fast-way-to-test-if-a-port-is-in-use-using-python/52872579#52872579
+            # thx https://stackoverflow.com/a/52872579
             with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as s:
                 if s.connect_ex(('localhost', port)) == 0:
                     # the port is already in use!
-                    log.error("Failed to bind TCP {}:{}".format(interface, port))
+                    log.error("Failed to bind TCP %s:%d", interface, port)
 
             server = await self.loop.create_server(
                 lambda: self.server_protocol_class(self.loop, self.blob_manager, self.lbrycrd_address,