diff --git a/Logic/Osm/Changes.ts b/Logic/Osm/Changes.ts
index 9da36b048a..39b9f4e02f 100644
--- a/Logic/Osm/Changes.ts
+++ b/Logic/Osm/Changes.ts
@@ -25,13 +25,13 @@ export class Changes implements FeatureSource {
     /**
      * All the pending changes
      */
-    public readonly pending: UIEventSource<{ elementId: string, key: string, value: string }[]> = LocalStorageSource.GetParsed("pending-changes", [])
+    public readonly pending = LocalStorageSource.GetParsed<{ elementId: string, key: string, value: string }[]>("pending-changes", [])
 
     /**
      * All the pending new objects to upload
      * @private
      */
-    private readonly newObjects: UIEventSource<{ id: number, lat: number, lon: number }[]> = LocalStorageSource.GetParsed("newObjects", [])
+    private readonly newObjects = LocalStorageSource.GetParsed<{ id: number, lat: number, lon: number }[]>("newObjects", [])
 
     /**
      * Adds a change to the pending changes
diff --git a/Logic/Web/LocalStorageSource.ts b/Logic/Web/LocalStorageSource.ts
index a89d2a5569..61009114af 100644
--- a/Logic/Web/LocalStorageSource.ts
+++ b/Logic/Web/LocalStorageSource.ts
@@ -5,7 +5,7 @@ import {UIEventSource} from "../UIEventSource";
  */
 export class LocalStorageSource {
     
-    static GetParsed(key: string, defaultValue : any){
+    static GetParsed<T>(key: string, defaultValue : T) : UIEventSource<T>{
         return LocalStorageSource.Get(key).map(
             str => {
                 if(str === undefined){