diff --git a/target/linux/at91/Makefile b/target/linux/at91/Makefile
index d02a32071bc..cde2d77c7e4 100644
--- a/target/linux/at91/Makefile
+++ b/target/linux/at91/Makefile
@@ -11,6 +11,7 @@ FEATURES:=ext4 squashfs targz usbgadget ubifs
 SUBTARGETS:=sama7 sama5 sam9x
 
 KERNEL_PATCHVER:=6.1
+KERNEL_TESTING_PATCHVER:=6.6
 
 include $(INCLUDE_DIR)/target.mk