diff --git a/winsup/cygwin/Makefile.in b/winsup/cygwin/Makefile.in
index 42e9bc3bd..6b59ed82c 100644
--- a/winsup/cygwin/Makefile.in
+++ b/winsup/cygwin/Makefile.in
@@ -117,7 +117,7 @@ MALLOC_OFILES=@MALLOC_OFILES@
 
 DLL_IMPORTS:=$(w32api_lib)/libkernel32.a
 
-# Please maintain this list in sorted order, with maximum files per line
+# Please maintain this list in sorted order, with maximum files per 80 col line
 DLL_OFILES:=assert.o autoload.o cygheap.o cygserver_client.o cygserver_transport.o \
 	cygserver_transport_pipes.o cygserver_transport_sockets.o dcrt0.o debug.o \
 	delqueue.o dir.o dlfcn.o dll_init.o dtable.o environ.o errno.o exceptions.o \