diff --git a/ChangeLog b/ChangeLog
index df5a955f5..ed1c07cba 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+20120214
+ - (djm) [openbsd-compat/bsd-cygwin_util.c] Add PROGRAMFILES to list of
+   preserved Cygwin environment variables; from Corinna Vinschen
+
 20120211
  - (djm) OpenBSD CVS Sync
    - djm@cvs.openbsd.org 2012/01/05 00:16:56
diff --git a/openbsd-compat/bsd-cygwin_util.c b/openbsd-compat/bsd-cygwin_util.c
index 9eedc88d2..6befc016f 100644
--- a/openbsd-compat/bsd-cygwin_util.c
+++ b/openbsd-compat/bsd-cygwin_util.c
@@ -76,6 +76,7 @@ static struct wenv {
 	{ NL("OS=") },
 	{ NL("PATH=") },
 	{ NL("PATHEXT=") },
+	{ NL("PROGRAMFILES=") },
 	{ NL("SYSTEMDRIVE=") },
 	{ NL("SYSTEMROOT=") },
 	{ NL("WINDIR=") }