diff --git a/python-bjoern.changes b/python-bjoern.changes
index 18c1e5c..0a53e34 100644
--- a/python-bjoern.changes
+++ b/python-bjoern.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Tue Mar 13 03:20:57 UTC 2018 - bwiedemann@suse.com
+
+- Add reproducible.patch to make build reproducible (boo#1041090)
+
 -------------------------------------------------------------------
 Mon Feb  2 16:27:46 UTC 2015 - boris@steki.net
 
diff --git a/python-bjoern.spec b/python-bjoern.spec
index ffcfc5d..77e42cb 100644
--- a/python-bjoern.spec
+++ b/python-bjoern.spec
@@ -24,6 +24,7 @@ License:        BSD-2-Clause
 Group:          Development/Languages/Python
 Url:            https://github.com/jonashaag/bjoern
 Source:         http://pypi.python.org/packages/source/b/bjoern/bjoern-%{version}.tar.gz
+Patch0:         reproducible.patch
 BuildRequires:  libev-devel
 BuildRequires:  python-devel
 BuildRoot:      %{_tmppath}/%{name}-%{version}-build
@@ -36,6 +37,7 @@ A screamingly fast Python WSGI server written in C depending on libev.
 
 %prep
 %setup -q -n bjoern-%{version}
+%patch0 -p1
 
 %build
 CFLAGS="%{optflags}" python setup.py build
diff --git a/reproducible.patch b/reproducible.patch
new file mode 100644
index 0000000..b78f823
--- /dev/null
+++ b/reproducible.patch
@@ -0,0 +1,28 @@
+merged upstream
+
+commit 7e4227ea7e789a8e917b52c43adda3318c4062bb
+Author: Bernhard M. Wiedemann <bwiedemann@suse.de>
+Date:   Mon Jun 5 16:41:04 2017 +0200
+
+    sort input files
+    
+    when building packages (e.g. for openSUSE Linux)
+    (random) filesystem order of input files
+    influences ordering of functions in the output,
+    thus without the patch, builds (in disposable VMs) would usually differ.
+    
+    See https://reproducible-builds.org/ for why this matters.
+
+Index: bjoern-1.4.2/setup.py
+===================================================================
+--- bjoern-1.4.2.orig/setup.py
++++ bjoern-1.4.2/setup.py
+@@ -3,7 +3,7 @@ import glob
+ from distutils.core import setup, Extension
+ 
+ SOURCE_FILES = [os.path.join('http-parser', 'http_parser.c')] + \
+-               glob.glob(os.path.join('bjoern', '*.c'))
++               sorted(glob.glob(os.path.join('bjoern', '*.c')))
+ 
+ bjoern_extension = Extension(
+     '_bjoern',