diff --git a/live-build/auto/config b/live-build/auto/config
index 3d012cc0..45bf095d 100755
--- a/live-build/auto/config
+++ b/live-build/auto/config
@@ -352,7 +352,7 @@ case $IMAGEFORMAT in
 	ubuntu-image)
 		UBUNTU_IMAGE_ARGS=""
 		case "$ARCH+${SUBARCH:-}" in
-			intel-iot)
+			amd64+intel-iot)
 				MODEL=intel-iot ;;
 			amd64+*)
 				MODEL=pc-amd64 ;;