diff --git a/include/kernel.mk b/include/kernel.mk
index e21d53abb1..9c3a04b635 100644
--- a/include/kernel.mk
+++ b/include/kernel.mk
@@ -52,7 +52,7 @@ else
   LINUX_SOURCE:=linux-$(LINUX_VERSION).tar.xz
   TESTING:=$(if $(findstring -rc,$(LINUX_VERSION)),/testing,)
   ifeq ($(call qstrip,$(CONFIG_EXTERNAL_KERNEL_TREE))$(call qstrip,$(CONFIG_KERNEL_GIT_CLONE_URI)),)
-      LINUX_SITE:=@KERNEL/linux/kernel/v3.x$(TESTING)
+      LINUX_SITE:=@KERNEL/linux/kernel/v$(word 1,$(subst ., ,$(KERNEL_BASE))).x$(TESTING)
   endif
 
   ifneq ($(TARGET_BUILD),1)