diff --git a/x11-wm/plasma5-kwin/files/patch-src_backends_x11_windowed_x11__windowed__qpainter__backend.cpp b/x11-wm/plasma5-kwin/files/patch-src_backends_x11_windowed_x11__windowed__qpainter__backend.cpp
index 938bf51a26ff..959ece5721bc 100644
--- a/x11-wm/plasma5-kwin/files/patch-src_backends_x11_windowed_x11__windowed__qpainter__backend.cpp
+++ b/x11-wm/plasma5-kwin/files/patch-src_backends_x11_windowed_x11__windowed__qpainter__backend.cpp
@@ -1,17 +1,17 @@
 src/backends/x11/windowed/x11_windowed_qpainter_backend.cpp:47:71: error: use of undeclared identifier 'errno'
         qCWarning(KWIN_X11WINDOWED) << "shmget() failed:" << strerror(errno);
                                                                       ^
 src/backends/x11/windowed/x11_windowed_qpainter_backend.cpp:54:70: error: use of undeclared identifier 'errno'
         qCWarning(KWIN_X11WINDOWED) << "shmat() failed:" << strerror(errno);
                                                                      ^
 
---- src/backends/x11/windowed/x11_windowed_qpainter_backend.cpp~	2023-02-09 12:15:33.000000000 +0000
-+++ src/backends/x11/windowed/x11_windowed_qpainter_backend.cpp	2023-02-16 00:34:26.599527784 +0000
+--- src/backends/x11/windowed/x11_windowed_qpainter_backend.cpp.orig	2023-02-09 12:15:33 UTC
++++ src/backends/x11/windowed/x11_windowed_qpainter_backend.cpp
 @@ -11,6 +11,7 @@
  #include "x11_windowed_logging.h"
  #include "x11_windowed_output.h"
  
 +#include <cerrno>
  #include <string.h>
  #include <sys/shm.h>
  #include <xcb/present.h>