diff --git a/kwindowsystem.spec b/kwindowsystem.spec
index 6953d70..40828da 100644
--- a/kwindowsystem.spec
+++ b/kwindowsystem.spec
@@ -43,8 +43,6 @@ Group:          System/GUI/KDE
 Url:            http://www.kde.org
 Source:         http://download.kde.org/stable/frameworks/%{_tar_path}/%{name}-%{version}.tar.xz
 Source1:        baselibs.conf
-# PATCH-FIX-UPSTREAM 0001-Harden-NETWM-data-reading.patch
-Patch0:         0001-Harden-NETWM-data-reading.patch
 BuildRoot:      %{_tmppath}/%{name}-%{version}-build
 
 %description
@@ -91,7 +89,6 @@ Development files.
 %lang_package -n %lname
 %prep
 %setup -q
-%patch0 -p1
 
 %build
   %cmake_kf5 -d build -- -Dlconvert_executable=%{_kf5_libdir}/qt5/bin/lconvert