diff --git a/kde-plasma/kwin/files/kwin-5.10.95-test-optional.patch b/kde-plasma/kwin/files/kwin-5.10.95-test-optional.patch
new file mode 100644
index 0000000000000..e52934b3ec522
--- /dev/null
+++ b/kde-plasma/kwin/files/kwin-5.10.95-test-optional.patch
@@ -0,0 +1,34 @@
+From 89db55c3983abee3dd42cef3cff2f83e94121be8 Mon Sep 17 00:00:00 2001
+From: Andreas Sturmlechner <andreas.sturmlechner@gmail.com>
+Date: Thu, 14 Sep 2017 10:02:04 +0200
+Subject: [PATCH] Put effectModelTest behind BUILD_TESTING conditional
+
+Qt5Test, so tests need to be too.
+---
+ kcmkwin/kwincompositing/CMakeLists.txt | 3 ++-
+ 1 file changed, 2 insertions(+), 1 deletion(-)
+
+diff --git a/kcmkwin/kwincompositing/CMakeLists.txt b/kcmkwin/kwincompositing/CMakeLists.txt
+index 350ef85de..75758a4a0 100644
+--- a/kcmkwin/kwincompositing/CMakeLists.txt
++++ b/kcmkwin/kwincompositing/CMakeLists.txt
+@@ -46,7 +46,7 @@ target_link_libraries(kwincompositing
+     kwin4_effect_builtins
+ )
+ 
+-
++if(BUILD_TESTING)
+ set(modelTest_SRC
+     model.cpp
+     effectconfig.cpp
+@@ -77,6 +77,7 @@ target_link_libraries(effectModelTest
+     kwineffects
+     kwin4_effect_builtins
+ )
++endif()
+ 
+ INSTALL(DIRECTORY qml DESTINATION ${DATA_INSTALL_DIR}/kwincompositing)
+ INSTALL(TARGETS kwincompositing DESTINATION ${PLUGIN_INSTALL_DIR})
+-- 
+2.13.5
+