diff --git a/libp2p/transports/wstransport.nim b/libp2p/transports/wstransport.nim
index e373688b9..9eb8a340d 100644
--- a/libp2p/transports/wstransport.nim
+++ b/libp2p/transports/wstransport.nim
@@ -56,7 +56,7 @@ proc new*(
   stream.initStream()
   return stream
 
-template mapExceptions(body: untyped) =
+template mapExceptions(body: untyped): untyped =
   try:
     body
   except AsyncStreamIncompleteError: