diff --git a/Assistant/Pairing/Network.hs b/Assistant/Pairing/Network.hs
index 694dcbbcc3..09f0fc3207 100644
--- a/Assistant/Pairing/Network.hs
+++ b/Assistant/Pairing/Network.hs
@@ -20,6 +20,8 @@ import Utility.Verifiable
 import Network.Multicast
 import Network.Info
 import Network.Socket
+import qualified Network.Socket.ByteString as B
+import qualified Data.ByteString.UTF8 as BU8
 import qualified Data.Map as M
 import Control.Concurrent
 
@@ -63,10 +65,11 @@ multicastPairMsg repeats secret pairdata stage = go M.empty repeats
 		withSocketsDo $ bracket setup cleanup use
 	  where
 		setup = multicastSender (multicastAddress IPv4AddrClass) pairingPort
-		cleanup (sock, _) = sClose sock -- FIXME does not work
+		cleanup (sock, _) = close sock -- FIXME does not work
 		use (sock, addr) = do
 			setInterface sock (showAddr i)
-			maybe noop (\s -> void $ sendTo sock s addr)
+			maybe noop
+				(\s -> void $ B.sendTo sock (BU8.fromString s) addr)
 				(M.lookup i cache)
 	updatecache cache [] = cache
 	updatecache cache (i:is)
diff --git a/Utility/WebApp.hs b/Utility/WebApp.hs
index 29deb24df4..3d2c31a897 100644
--- a/Utility/WebApp.hs
+++ b/Utility/WebApp.hs
@@ -127,12 +127,12 @@ getSocket h = do
 	go' :: Int -> AddrInfo -> IO Socket
 	go' 0 _ = error "unable to bind to local socket"
 	go' n addr = do
-		r <- tryIO $ bracketOnError (open addr) sClose (useaddr addr)
+		r <- tryIO $ bracketOnError (open addr) close (useaddr addr)
 		either (const $ go' (pred n) addr) return r
 	open addr = socket (addrFamily addr) (addrSocketType addr) (addrProtocol addr)
 	useaddr addr sock = do
 		preparesocket sock
-		bindSocket sock (addrAddress addr)
+		bind sock (addrAddress addr)
 		use sock
 #endif
 	preparesocket sock = setSocketOption sock ReuseAddr 1