diff --git a/install.sh b/install.sh
index 965f601..2f8e982 100644
--- a/install.sh
+++ b/install.sh
@@ -60,7 +60,7 @@ handle_env_file() {
     fi
 
     # Generate and append variables
-    APP_KEY=$(generate_app_key)
+    APP_KEY=base64:$(generate_app_key)
     APP_NAME="NexoCloud"
     DB_USERNAME="nexo-cloud"
     DB_PASSWORD=$(generate_random_password)