diff --git a/template/src/store/utils/keymirror.ts b/template/src/store/utils/keymirror.ts
index 7d448b1..03e1278 100644
--- a/template/src/store/utils/keymirror.ts
+++ b/template/src/store/utils/keymirror.ts
@@ -2,15 +2,16 @@
  * Create an object with values equal to its key names.
  */
 
-export default function<T>(obj: T): { [K in keyof T]: string } {
-    let ret = {}
-    let key
+export default function<T>(obj: T): { [K in keyof T]: K } {
+	const ret: any = {}
+	let key
 
-    for (key in obj) {
-        if ((obj as Object).hasOwnProperty(key)) {
-            ret[key] = key
-        }
-    }
+	for (key in obj) {
+		if (Object.prototype.hasOwnProperty.call(obj, key)) {
+			ret[key] = key
+		}
+	}
 
-    return ret as { [K in keyof T]: K }
+	return ret as { [K in keyof T]: K }
 }
+