diff --git a/src/zziplib-2-prefer-win32-mmap.patch b/src/zziplib-2-prefer-win32-mmap.patch
new file mode 100644
index 00000000..3290ba09
--- /dev/null
+++ b/src/zziplib-2-prefer-win32-mmap.patch
@@ -0,0 +1,23 @@
+This file is part of MXE. See LICENSE.md for licensing information.
+
+Contains ad hoc patches for cross building.
+
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Hopper262 <hopper@whpress.com>
+Date: Sat, 23 Mar 2019 19:50:51 -0400
+Subject: [PATCH 1/1] Prefer win32 mmap
+
+
+diff --git a/zzip/__mmap.h b/zzip/__mmap.h
+index 1111111..2222222 100644
+--- a/zzip/__mmap.h
++++ b/zzip/__mmap.h
+@@ -18,7 +18,7 @@
+  */
+ 
+ #ifdef _USE_MMAP
+-#if    defined ZZIP_HAVE_SYS_MMAN_H
++#if    defined ZZIP_HAVE_SYS_MMAN_H && !defined WIN32
+ #include <sys/mman.h>
+ #define USE_POSIX_MMAP 1
+ #elif defined ZZIP_HAVE_WINBASE_H || defined WIN32
diff --git a/src/zziplib.mk b/src/zziplib.mk
index d58614e3..29e71536 100644
--- a/src/zziplib.mk
+++ b/src/zziplib.mk
@@ -25,7 +25,6 @@ define $(PKG)_BUILD
     # mman-win32 is only a partial implementation
     cd '$(1)' && ./configure \
         $(MXE_CONFIGURE_OPTS) \
-        --disable-mmap \
         CFLAGS="-O -ggdb" \
         PKG_CONFIG='$(TARGET)-pkg-config'
     $(MAKE) -C '$(1)' -j '$(JOBS)' bin_PROGRAMS= sbin_PROGRAMS= noinst_PROGRAMS= LDFLAGS="-no-undefined"