diff --git a/0001-Remove-debug-message-to-avoid-polute-to-stdout.patch b/0001-Remove-debug-message-to-avoid-polute-to-stdout.patch
new file mode 100644
index 0000000..ea6ba00
--- /dev/null
+++ b/0001-Remove-debug-message-to-avoid-polute-to-stdout.patch
@@ -0,0 +1,27 @@
+From 7869f641da712ddbe1e3e294903dfa5304c298df Mon Sep 17 00:00:00 2001
+From: Weng Xuetian <wengxt@gmail.com>
+Date: Sat, 9 Jan 2021 19:07:24 -0800
+Subject: [PATCH] Remove debug message to avoid polute to stdout.
+
+This would break application like zenity which output to stdout.
+
+(cherry picked from commit 62e272df848d6848482ceb534d14bf36c9fde241)
+---
+ window-decorations-reload-module/reloader.c | 1 -
+ 1 file changed, 1 deletion(-)
+
+diff --git a/window-decorations-reload-module/reloader.c b/window-decorations-reload-module/reloader.c
+index 9e367dc..606bb1f 100644
+--- a/window-decorations-reload-module/reloader.c
++++ b/window-decorations-reload-module/reloader.c
+@@ -55,7 +55,6 @@ void manage_css_provider(GFileMonitor *monitor, GFile *file, GFile *other_file,
+ 
+ void reload_css_provider()
+ {
+-    printf("WINDOW DECORATIONS RELOADED\n");
+     if (css_provider != NULL) {
+         remove_css_provider();
+     }
+-- 
+2.25.1
+
diff --git a/kde-gtk-config5.changes b/kde-gtk-config5.changes
index 9f96d18..61eb414 100644
--- a/kde-gtk-config5.changes
+++ b/kde-gtk-config5.changes
@@ -1,3 +1,10 @@
+-------------------------------------------------------------------
+Fri Feb 12 09:33:00 UTC 2021 - Fabian Vogt <fabian@ritter-vogt.de>
+
+- Add patch to not pollute stdout, which broke some applications
+  (boo#1182151, kde#431365):
+  * 0001-Remove-debug-message-to-avoid-polute-to-stdout.patch
+
 -------------------------------------------------------------------
 Thu Jan 21 21:31:33 UTC 2021 - Fabian Vogt <fabian@ritter-vogt.de>
 
diff --git a/kde-gtk-config5.spec b/kde-gtk-config5.spec
index b2623ee..50a5c44 100644
--- a/kde-gtk-config5.spec
+++ b/kde-gtk-config5.spec
@@ -29,6 +29,8 @@ Source:         https://download.kde.org/unstable/plasma/%{version}/kde-gtk-conf
 Source1:        https://download.kde.org/unstable/plasma/%{version}/kde-gtk-config-%{version}.tar.xz.sig
 Source2:        plasma.keyring
 %endif
+# PATCH-FIX-UPSTREAM
+Patch1:         0001-Remove-debug-message-to-avoid-polute-to-stdout.patch
 BuildRequires:  extra-cmake-modules >= 0.0.9
 BuildRequires:  kf5-filesystem
 BuildRequires:  sassc