diff --git a/ts/smartchok.plugins.ts b/ts/smartchok.plugins.ts
index 7089288..23854f1 100644
--- a/ts/smartchok.plugins.ts
+++ b/ts/smartchok.plugins.ts
@@ -10,6 +10,6 @@ import {Operator} from 'rxjs/Operator';
 import {Observable} from 'rxjs/Observable';
 declare module 'rxjs/Subject' {
   interface Subject<T> {
-    lift<R>(operator: Operator<T, R>): Observable<R>;
+    lift<R>(operator: Operator<T, R>): Observable<R>
   }
 }