diff --git a/packages/vuetify/src/services/application/index.ts b/packages/vuetify/src/services/application/index.ts
index 0e4c10c90e2..871c56bd6ae 100644
--- a/packages/vuetify/src/services/application/index.ts
+++ b/packages/vuetify/src/services/application/index.ts
@@ -36,7 +36,7 @@ export class Application extends Service implements IApplication {
     location: TargetProp,
     size: number
   ) {
-    this.application[location] = { [uid]: size }
+    this.application[location][uid] = size
 
     this.update(location)
   }