diff --git a/target/linux/bcm53xx/Makefile b/target/linux/bcm53xx/Makefile
index d5466cd792..5cc09ca55a 100644
--- a/target/linux/bcm53xx/Makefile
+++ b/target/linux/bcm53xx/Makefile
@@ -12,6 +12,7 @@ CPU_TYPE:=cortex-a9
 SUBTARGETS:=generic
 
 KERNEL_PATCHVER:=6.12
+KERNEL_TESTING_PATCHVER:=6.18
 
 define Target/Description
 	Build firmware images for Broadcom based BCM47xx/53xx routers with ARM CPU, *not* MIPS.