diff --git a/QtWebEngine_6.8_skip_xnnpack.patch b/QtWebEngine_6.8_skip_xnnpack.patch
new file mode 100644
index 0000000..d0939e4
--- /dev/null
+++ b/QtWebEngine_6.8_skip_xnnpack.patch
@@ -0,0 +1,19 @@
+Don't use xnnpack on ARM with QtWebEngine 6.8.0
+
+Bug ref: https://bugreports.qt.io/browse/QTBUG-129985
+
+diff --git a/src/core/CMakeLists.txt b/src/core/CMakeLists.txt
+index fe4f2c3f1..729d4d3e9 100644
+--- a/src/core/CMakeLists.txt
++++ b/src/core/CMakeLists.txt
+@@ -544,6 +544,10 @@ foreach(arch ${archs})
+                     )
+                 endif()
+             endif()
++            if(cpu MATCHES "arm.*")
++                # https://bugreports.qt.io/browse/QTBUG-129985
++                list(APPEND gnArgArg build_webnn_with_xnnpack=false)
++            endif()
+             unset(cpu)
+         endif()
+ 
diff --git a/qt6-webengine.changes b/qt6-webengine.changes
index 1db7073..302c7c5 100644
--- a/qt6-webengine.changes
+++ b/qt6-webengine.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Sun Oct 13 16:56:37 UTC 2024 - Christophe Marin <christophe@krop.fr>
+
+- Add patch to avoid a build failure on ARM (QTBUG-129985):
+  * QtWebEngine_6.8_skip_xnnpack.patch
+
 -------------------------------------------------------------------
 Tue Oct  8 09:29:57 UTC 2024 - Christophe Marin <christophe@krop.fr>
 
diff --git a/qt6-webengine.spec b/qt6-webengine.spec
index d2c0d87..861441f 100644
--- a/qt6-webengine.spec
+++ b/qt6-webengine.spec
@@ -54,6 +54,7 @@ Source99:       qt6-webengine-rpmlintrc
 # Patches 0-100 are upstream patches #
 # Patches 100-200 are openSUSE and/or non-upstream(able) patches #
 Patch100:       rtc-dont-use-h264.patch
+Patch101:       QtWebEngine_6.8_skip_xnnpack.patch
 #
 # Chromium/blink don't support PowerPC and zSystems and build fails on
 # 32 bits archs (https://bugreports.qt.io/browse/QTBUG-102143)