diff --git a/config/boards/cubox-i.csc b/config/boards/cubox-i.conf
similarity index 100%
rename from config/boards/cubox-i.csc
rename to config/boards/cubox-i.conf
diff --git a/config/boards/odroidc1.csc b/config/boards/odroidc1.conf
similarity index 100%
rename from config/boards/odroidc1.csc
rename to config/boards/odroidc1.conf
diff --git a/config/boards/rock-5-itx.conf b/config/boards/rock-5-itx.conf
index 508bf2fde..3760eb52b 100644
--- a/config/boards/rock-5-itx.conf
+++ b/config/boards/rock-5-itx.conf
@@ -4,6 +4,7 @@ BOARDFAMILY="rockchip-rk3588"
 BOARD_MAINTAINER="amazingfate prahal"
 BOOTCONFIG="rock-5-itx-rk3588_defconfig"
 KERNEL_TARGET="current,edge,vendor"
+KERNEL_TEST_TARGET="vendor,current"
 FULL_DESKTOP="yes"
 BOOT_LOGO="desktop"
 BOOT_FDT_FILE="rockchip/rk3588-rock-5-itx.dtb"
diff --git a/config/boards/rock64.csc b/config/boards/rock64.conf
similarity index 100%
rename from config/boards/rock64.csc
rename to config/boards/rock64.conf
diff --git a/config/boards/udoo.csc b/config/boards/udoo.conf
similarity index 100%
rename from config/boards/udoo.csc
rename to config/boards/udoo.conf