diff --git a/lib/interfaces/type.interface.ts b/lib/interfaces/type.interface.ts
index 2e148dad..99e5d562 100644
--- a/lib/interfaces/type.interface.ts
+++ b/lib/interfaces/type.interface.ts
@@ -1,3 +1,9 @@
 export interface Type<T = any> extends Function {
   new (...args: any[]): T;
 }
+
+export type WithoutCallback<T extends any[]> =
+  // T extends any makes this distributive
+  T extends any ?
+    T extends [...infer U, any] ? U : T
+    : never;
diff --git a/lib/passport/passport.strategy.ts b/lib/passport/passport.strategy.ts
index f60e4d6f..86a4a7bc 100644
--- a/lib/passport/passport.strategy.ts
+++ b/lib/passport/passport.strategy.ts
@@ -1,12 +1,12 @@
 import * as passport from 'passport';
-import { Type } from '../interfaces';
+import { Type, WithoutCallback} from '../interfaces';
 
 export function PassportStrategy<T extends Type<any> = any>(
   Strategy: T,
   name?: string | undefined,
   callbackArity?: true | number
 ): {
-  new (...args): InstanceType<T>;
+  new (...args: WithoutCallback<ConstructorParameters<T>>): InstanceType<T>;
 } {
   abstract class MixinStrategy extends Strategy {
     abstract validate(...args: any[]): any;