diff --git a/Makefile b/Makefile
index 26b8941969..812003c6c6 100644
--- a/Makefile
+++ b/Makefile
@@ -84,7 +84,7 @@ build: bundles
 	docker build -t "$(DOCKER_IMAGE)" .
 
 docs-build:
-	( git remote | grep -v upstream ) || git diff --name-status upstream/release..upstream/docs docs/ > docs/changed-files
+	git fetch https://github.com/docker/docker.git docs && git diff --name-status FETCH_HEAD...HEAD -- docs > docs/changed-files
 	cp ./VERSION docs/VERSION
 	echo "$(GIT_BRANCH)" > docs/GIT_BRANCH
 	echo "$(AWS_S3_BUCKET)" > docs/AWS_S3_BUCKET