diff --git a/src/lib/server/config.ts b/src/lib/server/config.ts
index 5b5c0e5..0cf11f9 100644
--- a/src/lib/server/config.ts
+++ b/src/lib/server/config.ts
@@ -37,6 +37,8 @@ class Config {
 	readonly is_debug: boolean = process.env.NODE_ENV != "production"
 	readonly is_production: boolean = process.env.NODE_ENV == "production"
 
+	private _session_timeout: number = 15 * 60 * 1000
+
 	get log_dir(): string {
 		return this._log_dir
 	}
@@ -44,6 +46,8 @@ class Config {
 		return this._log_to_file_when_debug
 	}
 
+	get session_timeout(): number { return this._session_timeout }
+
 	constructor() {
 		this._log_dir = resolve_env_to_path(process.env.APP_LOG_DIR, "./data/logs")	
 		this._log_to_file_when_debug = resolve_env_to_boolean(process.env.LOG_TO_FILE_WHEN_DEBUG, false)
diff --git a/src/lib/server/usermgmt.ts b/src/lib/server/usermgmt.ts
index 40eb37b..44a832e 100644
--- a/src/lib/server/usermgmt.ts
+++ b/src/lib/server/usermgmt.ts
@@ -4,11 +4,10 @@ import { Prisma } from "@prisma/client"
 
 import { ArgumentError, DuplicateError } from "$lib/errors"
 
+import Config from "$lib/server/config"
 import Log from "$lib/server/log"
 import db from "$lib/server/database"
 
-const SESSION_LIFETIME = 15 * 60 * 1000
-
 export type User = Prisma.UserGetPayload<Prisma.UserDefaultArgs>
 
 export interface SessionData {
@@ -120,7 +119,7 @@ class UserMgmt {
 		}
 
 		const token = Crypto.randomBytes(32).toBase64()
-		const session_info = this._cache.add(user, token, new Date(), new Date(Date.now() + SESSION_LIFETIME))
+		const session_info = this._cache.add(user, token, new Date(), new Date(Date.now() + Config.session_timeout))
 
 		return session_info
 	}