diff --git a/mobile-detect/mobile-detect.d.ts b/mobile-detect/mobile-detect.d.ts
index f37793ced..c24b2ea67 100644
--- a/mobile-detect/mobile-detect.d.ts
+++ b/mobile-detect/mobile-detect.d.ts
@@ -5,7 +5,7 @@
 
 declare class MobileDetect {
 	
-	contructor(userAgent: string, maxPhoneWidth?: number);
+	contructor(userAgent: string, maxPhoneWidth?: number): MobileDetect;
 	
 	is(key: string): boolean;
 	match(pattern: string|RegExp): boolean