diff --git a/zimlib-fix-flags.patch b/zimlib-fix-flags.patch
new file mode 100644
index 0000000..63a16b0
--- /dev/null
+++ b/zimlib-fix-flags.patch
@@ -0,0 +1,25 @@
+From f28658b6dd722e548e93f5d45a03ac7c8d078501 Mon Sep 17 00:00:00 2001
+From: Vitaly Zaitsev <vitaly@easycoding.org>
+Date: Wed, 10 Apr 2019 14:57:47 +0200
+Subject: [PATCH 2/2] Removed Werror build flag.
+
+---
+ meson.build | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/meson.build b/meson.build
+index 2d38684..42e5253 100644
+--- a/meson.build
++++ b/meson.build
+@@ -1,7 +1,7 @@
+ project('libzim', ['c', 'cpp'],
+   version : '4.0.6',
+   license : 'GPL2',
+-  default_options : ['c_std=c11', 'cpp_std=c++11', 'werror=true'])
++  default_options : ['c_std=c11', 'cpp_std=c++11'])
+ 
+ if build_machine.system() != 'windows'
+   add_project_arguments('-D_LARGEFILE64_SOURCE=1', '-D_FILE_OFFSET_BITS=64', language: 'cpp')
+-- 
+2.20.1
+
diff --git a/zimlib-no-rpath.patch b/zimlib-no-rpath.patch
index eacfda6..46279e7 100644
--- a/zimlib-no-rpath.patch
+++ b/zimlib-no-rpath.patch
@@ -1,7 +1,7 @@
 From dd7e0ec915e4ad782328b496677bf7b122282560 Mon Sep 17 00:00:00 2001
 From: Vitaly Zaitsev <vitaly@easycoding.org>
 Date: Wed, 10 Apr 2019 14:31:32 +0200
-Subject: [PATCH] Removed Rpath build.
+Subject: [PATCH 1/2] Removed Rpath build.
 
 ---
  src/meson.build | 4 +---
diff --git a/zimlib.spec b/zimlib.spec
index 54d68d0..6348acf 100644
--- a/zimlib.spec
+++ b/zimlib.spec
@@ -2,7 +2,7 @@
 
 Name: zimlib
 Version: 4.0.6
-Release: 2%{?dist}
+Release: 3%{?dist}
 
 License: GPLv2 and ASL 2.0 and BSD
 Summary: Reference implementation of the ZIM specification
@@ -10,6 +10,7 @@ Summary: Reference implementation of the ZIM specification
 URL: https://github.com/openzim/%{appname}
 Source0: %{url}/archive/%{version}.tar.gz
 Patch0: %{name}-no-rpath.patch
+Patch1: %{name}-fix-flags.patch
 
 BuildRequires: xapian-core-devel
 BuildRequires: libicu-devel
@@ -54,6 +55,9 @@ Requires: %{name}%{?_isa} = %{?epoch:%{epoch}:}%{version}-%{release}
 %{_libdir}/pkgconfig/%{appname}.pc
 
 %changelog
+* Wed Apr 10 2019 Vitaly Zaitsev <vitaly@easycoding.org> - 4.0.6-3
+- Removed Werror build flag.
+
 * Wed Apr 10 2019 Vitaly Zaitsev <vitaly@easycoding.org> - 4.0.6-2
 - Removed rpath.