diff --git a/Dockerfile b/Dockerfile
index 5a2de0f..58f1a9e 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -4,4 +4,7 @@ WORKDIR /src
 
 RUN apk add hugo
 
-CMD cd $1; hugo
+ADD *.sh /
+
+ENTRYPOINT ["/entrypoint.sh"]
+CMD ["--help"]
diff --git a/entrypoint.sh b/entrypoint.sh
new file mode 100644
index 0000000..c950f71
--- /dev/null
+++ b/entrypoint.sh
@@ -0,0 +1,7 @@
+#!/bin/sh
+
+set -e
+
+cd "$1"
+hugo
+