diff --git a/reproducible.patch b/reproducible.patch
new file mode 100644
index 0000000..25c0d67
--- /dev/null
+++ b/reproducible.patch
@@ -0,0 +1,24 @@
+From 74a3129429a8f99dfcac78ac676d2ca845e05af6 Mon Sep 17 00:00:00 2001
+From: "Bernhard M. Wiedemann" <bwiedemann@suse.de>
+Date: Tue, 26 Jun 2018 12:36:57 +0200
+Subject: [PATCH] Do not save extra file attributes in .zip
+
+to make it easier to make a reproducible build
+See https://reproducible-builds.org/ for why this is good.
+---
+ dist/CMakeLists.txt | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/dist/CMakeLists.txt b/dist/CMakeLists.txt
+index 842d3cb1..a7c617bd 100644
+--- a/dist/CMakeLists.txt
++++ b/dist/CMakeLists.txt
+@@ -4,7 +4,7 @@ find_program(ZIPTOOL_7Z_EXECUTABLE 7z "$ENV{ProgramFiles}/7-Zip")
+ if(ZIPTOOL_7Z_EXECUTABLE)
+ 	set(ZIP_COMMAND "${ZIPTOOL_7Z_EXECUTABLE}" u -tzip -r "${CMAKE_BINARY_DIR}/slade.pk3" .)
+ elseif(ZIPTOOL_ZIP_EXECUTABLE)
+-	set(ZIP_COMMAND "${ZIPTOOL_ZIP_EXECUTABLE}" -r "${CMAKE_BINARY_DIR}/slade.pk3" .)
++	set(ZIP_COMMAND "${ZIPTOOL_ZIP_EXECUTABLE}" -X -r "${CMAKE_BINARY_DIR}/slade.pk3" .)
+ else()
+ 	message(STATUS "no zip executable, slade.pk3 won't build")
+ endif()
diff --git a/slade.changes b/slade.changes
index d1539af..d1ce78e 100644
--- a/slade.changes
+++ b/slade.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Tue Jun 26 10:46:19 UTC 2018 - bwiedemann@suse.com
+
+- Add reproducible.patch to not store extra timestamps in zip
+  to make build reproducible
+
 -------------------------------------------------------------------
 Tue Jun 12 12:46:57 UTC 2018 - jengelh@inai.de
 
diff --git a/slade.spec b/slade.spec
index 12d11a5..d58e24e 100644
--- a/slade.spec
+++ b/slade.spec
@@ -29,6 +29,8 @@ Source100:      slade.appdata.xml
 Patch1:         basepk3.diff
 Patch2:         wxChar.patch
 Patch10:        disable_sse.patch
+# PATCH-FIX-UPSTREAM https://github.com/sirjuddington/SLADE/pull/892 
+Patch11:        reproducible.patch
 BuildRoot:      %{_tmppath}/%{name}-%{version}-build
 BuildRequires:  ImageMagick
 BuildRequires:  cmake
@@ -60,6 +62,7 @@ from/to other generic formats such as PNG.
 %ifnarch %{ix86} x86_64
 %patch10 -p0
 %endif
+%patch11 -p1
 
 %build
 %cmake -DUSE_WEBKIT_STARTPAGE=ON