diff --git a/Makefile b/Makefile
index 6ea8907..c3afde6 100644
--- a/Makefile
+++ b/Makefile
@@ -78,6 +78,11 @@ web: FORCE
 	mkdir -p build/web
 	cp -r web/dist build/web/dist
 
+build/Dockefile: FORCE
+	mkdir -p build
+	cp Dockerfile build/Dockerfile
+	echo ENV EMBLEM_IMAGE=$(IMAGE) >> build/Dockerfile
+
 build/%: %
 	mkdir -p $(shell dirname $@)
 	cp -a $^ $@