diff --git a/types/log4js.d.ts b/types/log4js.d.ts
index 551397a2..648086d1 100644
--- a/types/log4js.d.ts
+++ b/types/log4js.d.ts
@@ -289,7 +289,7 @@ export class Logger {
   new(dispatch: Function, name: string): Logger;
 
 	readonly category: string;
-	level: string;
+	level: Level | string;
 
   log(...args: any[]): void;