diff --git a/emulators/simh/Makefile b/emulators/simh/Makefile
index d93222e215f..0dff17d2313 100644
--- a/emulators/simh/Makefile
+++ b/emulators/simh/Makefile
@@ -1,10 +1,10 @@
-# $OpenBSD: Makefile,v 1.74 2012/08/19 21:20:52 jasper Exp $
+# $OpenBSD: Makefile,v 1.75 2012/10/27 23:58:41 okan Exp $
 
 COMMENT=		PDP, IBM 1401, Nova and other CPUs simulator
 
 DISTNAME=		simhv39-0
 PKGNAME=		simh-3.9.0
-REVISION=		0
+REVISION=		1
 CATEGORIES=		emulators
 MASTER_SITES=		${HOMEPAGE}/sources/
 EXTRACT_SUFX=		.zip
diff --git a/emulators/simh/patches/patch-VAX_vaxmod_defs_h b/emulators/simh/patches/patch-VAX_vaxmod_defs_h
new file mode 100644
index 00000000000..999782e3ea9
--- /dev/null
+++ b/emulators/simh/patches/patch-VAX_vaxmod_defs_h
@@ -0,0 +1,12 @@
+$OpenBSD: patch-VAX_vaxmod_defs_h,v 1.1 2012/10/27 23:58:41 okan Exp $
+--- VAX/vaxmod_defs.h.orig	Wed Oct 24 10:15:03 2012
++++ VAX/vaxmod_defs.h	Wed Oct 24 10:16:25 2012
+@@ -114,7 +114,7 @@
+ #define MAXMEMSIZE      (1 << MAXMEMWIDTH)              /* max mem size */
+ #define MAXMEMWIDTH_X   29                              /* max mem, KA655X */
+ #define MAXMEMSIZE_X    (1 << MAXMEMWIDTH_X)
+-#define INITMEMSIZE     (1 << 24)                       /* initial memory size */
++#define INITMEMSIZE     (1 << 27)                       /* initial memory size */
+ #define MEMSIZE         (cpu_unit.capac)
+ #define ADDR_IS_MEM(x)  (((uint32) (x)) < MEMSIZE)
+