diff --git a/config.js.template b/config.js.template
index 64157ba..5bfb8a9 100644
--- a/config.js.template
+++ b/config.js.template
@@ -1,4 +1,4 @@
 window._env_ = {
-  API_URL: "",
-  API_OFFICE_URL: "",
+  API_URL: "${API_URL}",
+  API_OFFICE_URL: "${API_OFFICE_URL}"
 };
diff --git a/docker-entrypoint.sh b/docker-entrypoint.sh
index 800ed91..a945727 100644
--- a/docker-entrypoint.sh
+++ b/docker-entrypoint.sh
@@ -1,4 +1,7 @@
 #!/bin/bash
 set -e
+echo "API_URL: $API_URL"
+echo "API_OFFICE_URL: $API_OFFICE_URL"
 envsubst '${API_URL} ${API_OFFICE_URL}' < /var/www/public/config.js.template > /var/www/public/config.js
+cat /var/www/public/config.js
 exec "$@"