diff --git a/configs/ts4900_defconfig b/configs/ts4900_defconfig
index 082234fcad..e7950cea4b 100644
--- a/configs/ts4900_defconfig
+++ b/configs/ts4900_defconfig
@@ -3,6 +3,8 @@ BR2_cortex_a9=y
 BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_4_12=y
 BR2_ROOTFS_POST_IMAGE_SCRIPT="board/technologic/ts4900/post-image.sh"
 BR2_LINUX_KERNEL=y
+BR2_LINUX_KERNEL_CUSTOM_VERSION=y
+BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="4.12"
 BR2_LINUX_KERNEL_DEFCONFIG="imx_v6_v7"
 BR2_LINUX_KERNEL_UIMAGE=y
 BR2_LINUX_KERNEL_UIMAGE_LOADADDR="0x10008000"