diff --git a/www/qt6-webengine/files/patch-src_3rdparty_chromium_v8_src_codegen_arm_cpu-arm.cc b/www/qt6-webengine/files/patch-src_3rdparty_chromium_v8_src_codegen_arm_cpu-arm.cc
new file mode 100644
index 000000000000..7db44ba708cc
--- /dev/null
+++ b/www/qt6-webengine/files/patch-src_3rdparty_chromium_v8_src_codegen_arm_cpu-arm.cc
@@ -0,0 +1,18 @@
+--- src/3rdparty/chromium/v8/src/codegen/arm/cpu-arm.cc.orig	2025-09-13 15:19:49 UTC
++++ src/3rdparty/chromium/v8/src/codegen/arm/cpu-arm.cc
+@@ -2,12 +2,15 @@
+ // Use of this source code is governed by a BSD-style license that can be
+ // found in the LICENSE file.
+ 
++#include "include/v8config.h"
++
+ // CPU specific code for arm independent of OS goes here.
+ #ifdef __arm__
+ #ifdef __QNXNTO__
+ #include <sys/mman.h>  // for cache flushing.
+ #undef MAP_TYPE
+ #elif V8_OS_FREEBSD
++#include <sys/cdefs.h>
+ #include <machine/sysarch.h>  // for cache flushing
+ #include <sys/types.h>
+ #elif V8_OS_STARBOARD