diff --git a/ghc/lib/concurrent/Concurrent.lhs b/ghc/lib/concurrent/Concurrent.lhs
index befeaa64ec7da90f5308018f6bab3a1e4174ec7c..13a2851e61e6be666cf719c3283c5be49242c282 100644
--- a/ghc/lib/concurrent/Concurrent.lhs
+++ b/ghc/lib/concurrent/Concurrent.lhs
@@ -56,8 +56,6 @@ import Channel
 import Semaphore
 import SampleVar
 import PrelConc
-import PrelHandle       ( topHandler, threadDelay, 
-			  threadWaitRead, threadWaitWrite )
 import PrelException
 import PrelIOBase	( IO(..) )
 import IO