diff --git a/docker/Makefile b/docker/Makefile
index 1dd7e42d13..bd2743759b 100755
--- a/docker/Makefile
+++ b/docker/Makefile
@@ -6,7 +6,7 @@ CONSOLE_LINES ?= `echo $$(tput lines)`
 docker-build: ## Build a new image locally.
 	docker build -t mayanedms/mayanedms:$(IMAGE_VERSION) -f docker/Dockerfile .
 
-docker-build-with-proxy: ## Build a new image locally using an APT proxy.
+docker-build-with-proxy: ## Build a new image locally using an APT proxy as APT_PROXY.
 	docker build -t mayanedms/mayanedms:$(IMAGE_VERSION) -f docker/Dockerfile --build-arg APT_PROXY=$(APT_PROXY) .
 
 docker-shell: ## Launch a bash instance inside a running container. Pass the container name via DOCKER_CONTAINER.