diff --git a/.env.example b/.env.example
index 3c26a9c..8b7b49b 100644
--- a/.env.example
+++ b/.env.example
@@ -6,6 +6,7 @@ NEST_PORT=3033
 # !!! Path should be with " / " at the start !!!
 NEST_PREFIX=/api
 SECRET=
+JWT_EXPIRATION=30
 API_HOST=https://api.sourcescan.dev
 
 # NGINX