diff --git a/meta-digi-arm/conf/machine/include/digi-defaults.inc b/meta-digi-arm/conf/machine/include/digi-defaults.inc
index 59fd83bd2..fcf96f4ed 100644
--- a/meta-digi-arm/conf/machine/include/digi-defaults.inc
+++ b/meta-digi-arm/conf/machine/include/digi-defaults.inc
@@ -18,7 +18,7 @@ IMAGE_CLASSES = "image_types_digi"
 USE_VT = "0"
 
 # Add the machine variant to the valid machine override
-MACHINEOVERRIDES =. "${@['', '${MACHINE_VARIANT}:']['${MACHINE_VARIANT}' != '']}"
+MACHINEOVERRIDES .= "${@['', ':${MACHINE_VARIANT}']['${MACHINE_VARIANT}' != '']}"
 MACHINE_VARIANT ?= ""
 
 # U-Boot settings