diff --git a/lib/use-redux-effect.d.ts b/lib/use-redux-effect.d.ts
index a8c9272..bca6307 100644
--- a/lib/use-redux-effect.d.ts
+++ b/lib/use-redux-effect.d.ts
@@ -11,4 +11,4 @@ import { ReduxEffect } from './redux-effect';
  * @param type
  * @param deps
  */
-export declare function useReduxEffect(effect: ReduxEffect, type: string[], deps?: DependencyList): void;
+export declare function useReduxEffect(effect: ReduxEffect, type: string | string[], deps?: DependencyList): void;
diff --git a/src/use-redux-effect.ts b/src/use-redux-effect.ts
index e0d3c65..3324ccc 100644
--- a/src/use-redux-effect.ts
+++ b/src/use-redux-effect.ts
@@ -17,7 +17,7 @@ import { ReduxEffect } from './redux-effect'
  */
 export function useReduxEffect(
   effect: ReduxEffect,
-  type: string[],
+  type: string | string[],
   deps: DependencyList = [],
 ): void {
   const currentValue = useRef(null)