diff --git a/x11/plasma6-plasma-workspace/files/patch-xembed-sni-proxy_sniproxy.cpp b/x11/plasma6-plasma-workspace/files/patch-xembed-sni-proxy_sniproxy.cpp
new file mode 100644
index 000000000000..1ed5f0ee4208
--- /dev/null
+++ b/x11/plasma6-plasma-workspace/files/patch-xembed-sni-proxy_sniproxy.cpp
@@ -0,0 +1,11 @@
+--- xembed-sni-proxy/sniproxy.cpp.orig	2026-03-03 09:36:38 UTC
++++ xembed-sni-proxy/sniproxy.cpp
+@@ -324,7 +324,7 @@ QImage SNIProxy::getImageNonComposite() const
+             return elaborateConversion;
+     } else {
+         // Now we are sure we can eventually delete the xcb_image_t with this version
+-        return {image->data, image->width, image->height, image->stride, QImage::Format_ARGB32, sni_cleanup_xcb_image, image};
++        return {image->data, image->width, image->height, static_cast<qsizetype>(image->stride), QImage::Format_ARGB32, sni_cleanup_xcb_image, image};
+     }
+ }
+