diff --git a/d800ece16bd2d1f8f5e2d1cb98b59877b3487b10.patch b/d800ece16bd2d1f8f5e2d1cb98b59877b3487b10.patch
new file mode 100644
index 0000000..8803e29
--- /dev/null
+++ b/d800ece16bd2d1f8f5e2d1cb98b59877b3487b10.patch
@@ -0,0 +1,35 @@
+From d800ece16bd2d1f8f5e2d1cb98b59877b3487b10 Mon Sep 17 00:00:00 2001
+From: TJ Saunders <tj@castaglia.org>
+Date: Wed, 28 Oct 2015 18:22:42 -0700
+Subject: [PATCH] Attempt to Bug#4206 by speculatively fixing possible causes. 
+ First, reset a static string (allocated out of a pool which is cleared on
+ restart) to its default.  Next, remove some (useless) #ifdefs which, if
+ mod_lang is built as a DSO/shared module, could cause problems on module
+ loading IFF the system does not have the expected header.
+
+---
+ modules/mod_lang.c | 3 +--
+ 1 file changed, 1 insertion(+), 2 deletions(-)
+
+diff --git a/modules/mod_lang.c b/modules/mod_lang.c
+index 8e08f44..0170be7 100644
+--- a/modules/mod_lang.c
++++ b/modules/mod_lang.c
+@@ -716,9 +716,7 @@ static void lang_postparse_ev(const void *event_data, void *user_data) {
+   config_rec *c;
+   DIR *dirh;
+   server_rec *s;
+-#ifdef HAVE_LIBINTL_H
+   const char *locale_path = NULL;
+-#endif
+ 
+   c = find_config(main_server->conf, CONF_PARAM, "LangEngine", FALSE);
+   if (c) {
+@@ -888,6 +886,7 @@ static void lang_postparse_ev(const void *event_data, void *user_data) {
+ 
+ static void lang_restart_ev(const void *event_data, void *user_data) {
+   destroy_pool(lang_pool);
++  lang_curr = LANG_DEFAULT_LANG;
+   lang_list = NULL;
+   lang_aliases = NULL;
+ 
diff --git a/proftpd.spec b/proftpd.spec
index 74da763..3fee76f 100644
--- a/proftpd.spec
+++ b/proftpd.spec
@@ -46,7 +46,7 @@
 %define _hardened_build 1
 
 #global prever rc3
-%global rpmrel 3
+%global rpmrel 4
 %global mod_geoip_version 0.3
 %global mod_vroot_version 0.9.4
 
@@ -71,6 +71,7 @@ Source11:		http://www.castaglia.org/proftpd/modules/proftpd-mod-geoip-%{mod_geoi
 # (they are disabled by default); it is not included as part of the built package and should therefore
 # not fall foul of the rules against library bundling
 Source13:		http://search.cpan.org/CPAN/authors/id/C/CL/CLEMBURG/Test-Unit-0.14.tar.gz
+Patch0:			https://github.com/proftpd/proftpd/commit/d800ece16bd2d1f8f5e2d1cb98b59877b3487b10.patch
 Patch2:			proftpd.conf-no-memcached.patch
 Patch4:			proftpd-1.3.4rc1-mod_vroot-test.patch
 Patch5:			proftpd-1.3.4-utf8.patch
@@ -219,6 +220,11 @@ cp -p mod_geoip/mod_geoip.html doc/contrib/
 # Copy default config file into place
 cp -p %{SOURCE1} proftpd.conf
 
+# See if we can fix crash in mod_lang
+# http://bugs.proftpd.org/show_bug.cgi?id=4206
+# https://retrace.fedoraproject.org/faf/reports/10744/
+%patch0 -p1
+
 # If we're running the full test suite, include the mod_vroot test
 %patch4 -p1 -b .test_vroot
 
@@ -507,6 +513,11 @@ fi
 %{_mandir}/man1/ftpwho.1*
 
 %changelog
+* Thu Oct 29 2015 Paul Howarth <paul@city-fan.org> - 1.3.5a-4
+- See if we can fix crash in mod_lang
+  http://bugs.proftpd.org/show_bug.cgi?id=4206
+  https://retrace.fedoraproject.org/faf/reports/10744/
+
 * Thu Sep 10 2015 Paul Howarth <paul@city-fan.org> - 1.3.5a-3
 - Add dependency on perl(Crypt::Cracklib), needed for ftpasswd --use-cracklib