diff --git a/target/linux/x86/Makefile b/target/linux/x86/Makefile
index 39f0a6e8250..b4ac2a5ec84 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:=6.1
+KERNEL_TESTING_PATCHVER:=6.6
 
 KERNELNAME:=bzImage