diff --git a/target/linux/x86/Makefile b/target/linux/x86/Makefile
index e42d87fbc9..880ac73df8 100644
--- a/target/linux/x86/Makefile
+++ b/target/linux/x86/Makefile
@@ -11,6 +11,7 @@ FEATURES:=squashfs ext4 vdi vmdk vhdx pcmcia targz fpu boot-part rootfs-part
 SUBTARGETS:=generic legacy geode 64
 
 KERNEL_PATCHVER:=5.10
+KERNEL_TESTING_PATCHVER:=5.15
 
 KERNELNAME:=bzImage