diff --git a/include/kernel-version.mk b/include/kernel-version.mk
index 56edd7bbc8..09c664bc4d 100644
--- a/include/kernel-version.mk
+++ b/include/kernel-version.mk
@@ -22,6 +22,9 @@ endif
 ifeq ($(LINUX_VERSION),2.6.23.1)
   LINUX_KERNEL_MD5SUM:=518d57e08fdacd88907166a3bfe383b7
 endif
+ifeq ($(LINUX_VERSION),2.6.23.9)
+  LINUX_KERNEL_MD5SUM:=fc341e4f23bcd4056bdb0c9edc24ea3d
+endif
 
 # disable the md5sum check for unknown kernel versions
 LINUX_KERNEL_MD5SUM?=x
diff --git a/target/linux/adm5120/Makefile b/target/linux/adm5120/Makefile
index fcfc8bcbd3..e53bd5d214 100644
--- a/target/linux/adm5120/Makefile
+++ b/target/linux/adm5120/Makefile
@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
 
 BOARD:=adm5120
 BOARDNAME:=Infineon ADM5120
-LINUX_VERSION:=2.6.23.1
+LINUX_VERSION:=2.6.23.9
 FEATURES:=squashfs jffs2 tgz broken
 SUBTARGETS:=router_le router_be
 INITRAMFS_EXTRA_FILES:=