diff --git a/ChangeLog b/ChangeLog
index ad20184b4..092333cd6 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,6 +1,10 @@
 20140118
  - (dtucker) [uidswap.c] Prevent unused variable warnings on Cygwin.  Patch
    from vinschen at redhat.com
+ - (dtucker) [openbsd-compat/bsd-cygwin_util.h] Add missing function
+   declarations that stopped being included when we stopped including
+   <windows.h> from openbsd-compat/bsd-cygwin_util.h.  Patch from vinschen at
+   redhat.com.
 
 20140117
  - (dtucker) [aclocal.m4 configure.ac] Add some additional compiler/toolchain
diff --git a/openbsd-compat/bsd-cygwin_util.h b/openbsd-compat/bsd-cygwin_util.h
index 372e41955..1177366f1 100644
--- a/openbsd-compat/bsd-cygwin_util.h
+++ b/openbsd-compat/bsd-cygwin_util.h
@@ -1,4 +1,4 @@
-/* $Id: bsd-cygwin_util.h,v 1.16 2013/04/01 01:40:49 dtucker Exp $ */
+/* $Id: bsd-cygwin_util.h,v 1.17 2014/01/18 10:04:00 dtucker Exp $ */
 
 /*
  * Copyright (c) 2000, 2001, 2011, 2013 Corinna Vinschen <vinschen@redhat.com>
@@ -40,9 +40,15 @@
 typedef void *HANDLE;
 #define INVALID_HANDLE_VALUE ((HANDLE) -1)
 
+/* Cygwin functions for which declarations are only available when including
+   windows headers, so we have to define them here explicitely. */
+extern HANDLE cygwin_logon_user (const struct passwd *, const char *);
+extern void cygwin_set_impersonation_token (const HANDLE);
+
 #include <sys/cygwin.h>
 #include <io.h>
 
+
 int binary_open(const char *, int , ...);
 int check_ntsec(const char *);
 char **fetch_windows_environment(void);