diff --git a/Makefile b/Makefile
index 254f8b44a06854cb6799f3bd1a01b5fddc4a3416..9bf2a8cbd336c249f105c1e027169b9d7e2eec99 100644
--- a/Makefile
+++ b/Makefile
@@ -1,4 +1,9 @@
+IMAGE=docker.io/library/alpine
+TAG=3.18
+
 image.sqfs:
-	podman run --rm -ti -v $$PWD:/build -w /build alpine:3.17 ./make-image.sh
+	podman run --rm --volume $$PWD:/build --workdir /build \
+		$(IMAGE):$(TAG) \
+		./make-image.sh
 
 .PHONY: image.sqfs