diff --git a/build.sh b/build.sh
index 45e2eb0..f230ba7 100755
--- a/build.sh
+++ b/build.sh
@@ -2,7 +2,7 @@
 
 now=`date +%Y%m%d%H%M%S`
 
-docker image build --pull --tag "source.devloop.de/docker/courier-mta:${now}"
+docker image build --pull --tag "source.devloop.de/docker/courier-mta:${now}" .
 if [[ $? -eq 0 ]]; then
 	docker image tag "source.devloop.de/docker/courier-mta:${now}" "source.devloop.de/docker/courier-mta:latest"
 	docker image push "source.devloop.de/docker/courier-mta:${now}"