diff --git a/docker-start.sh b/docker-start.sh
index a967ba6..7e225ea 100755
--- a/docker-start.sh
+++ b/docker-start.sh
@@ -2,16 +2,16 @@
 set -euo pipefail
 
 # Copy frontend if not available
-[ -d /data/frontend ] || cp -r /usr/local/share/nginx-sso/frontend /data/frontend
+[ -d /data/frontend/index.html ] || cp -r /usr/local/share/nginx-sso/frontend /data/frontend
 
 [ -e /data/config.yaml ] || {
-	cp /usr/local/share/nginx-sso/config.yaml /data/config.yaml
-	echo "An example configuration was copied to /data/config.yaml - You want to edit that one!"
-	exit 1
+  cp /usr/local/share/nginx-sso/config.yaml /data/config.yaml
+  echo "An example configuration was copied to /data/config.yaml - You want to edit that one!"
+  exit 1
 }
 
 echo "Starting nginx-sso"
 exec /usr/local/bin/nginx-sso \
-	--config /data/config.yaml \
-	--frontend-dir /data/frontend \
-	$@
+  --config /data/config.yaml \
+  --frontend-dir /data/frontend \
+  $@
diff --git a/main.go b/main.go
index bf80f3d..470e21e 100644
--- a/main.go
+++ b/main.go
@@ -133,6 +133,7 @@ func main() {
 	http.HandleFunc("/", handleRootRequest)
 	http.HandleFunc("/auth", handleAuthRequest)
 	http.HandleFunc("/debug", handleLoginDebug)
+	http.HandleFunc("/health", func(w http.ResponseWriter, r *http.Request) { w.Write([]byte("OK")) })
 	http.HandleFunc("/login", handleLoginRequest)
 	http.HandleFunc("/logout", handleLogoutRequest)