diff --git a/build/mkdep.perl b/build/mkdep.perl
index f9e06ea041..a9f1a67d0b 100644
--- a/build/mkdep.perl
+++ b/build/mkdep.perl
@@ -1,6 +1,6 @@
 #!/usr/bin/perl
 #
-# $Id: mkdep.perl,v 1.1 2000/01/11 13:10:59 sascha Exp $
+# $Id: mkdep.perl,v 1.2 2000/03/19 13:25:33 bjh Exp $
 #
 # Created: Thu Aug 15 11:57:33 1996 too
 # Last modified: Mon Dec 27 09:23:56 1999 too
@@ -66,6 +66,7 @@ sub parseout
     &initinit;
     while (<F>)
     {
+        s/\\\\/\//g;
 	next unless (/^# [0-9]* "(.*\.h)"/);
 
 	next if ($1 =~ /^\//);