diff --git a/src/classes/EventEntity.ts b/src/classes/EventEntity.ts
index 504e1b3..94309a9 100644
--- a/src/classes/EventEntity.ts
+++ b/src/classes/EventEntity.ts
@@ -18,8 +18,9 @@ export abstract class EventEntity<TEntity> implements IEventEntity {
   }
 
   private updateState () {
-    for (const propertyName of Object.keys(this.state)) {
-      this[propertyName] = this.state[propertyName]
+    const state = this.state
+    for (const propertyName of Object.keys(state)) {
+      this[propertyName] = state[propertyName]
     }
   }