diff --git a/ghc/lib/concurrent/Makefile b/ghc/lib/concurrent/Makefile
index 17bc38191ba256d838f0b5c1b77250ede35213ec..deb1bff99243d50c4b367cddfc39c66b91f7e954 100644
--- a/ghc/lib/concurrent/Makefile
+++ b/ghc/lib/concurrent/Makefile
@@ -1,6 +1,8 @@
+# $Id: Makefile,v 1.3 1998/02/25 16:03:04 simonm Exp $
 #
-# Makefile for hslibs subdir
+# Makefile for concurrent libraries.
 #
+
 TOP = ../..
 include $(TOP)/mk/boilerplate.mk