diff --git a/packages/query-core/src/queryObserver.ts b/packages/query-core/src/queryObserver.ts
index 3dc751f5cd..12fd97a09a 100644
--- a/packages/query-core/src/queryObserver.ts
+++ b/packages/query-core/src/queryObserver.ts
@@ -273,18 +273,14 @@ export class QueryObserver<
     result: QueryObserverResult<TData, TError>,
     onPropTracked?: (key: keyof QueryObserverResult) => void,
   ): QueryObserverResult<TData, TError> {
-    const trackedResult = {} as QueryObserverResult<TData, TError>
-
-    Object.keys(result).forEach((key) => {
-      Object.defineProperty(trackedResult, key, {
-        configurable: false,
-        enumerable: true,
-        get: () => {
+    const trackedResult = new Proxy(result, {
+      get: (target, key) => {
+        if (key in target) {
           this.trackProp(key as keyof QueryObserverResult)
           onPropTracked?.(key as keyof QueryObserverResult)
-          return result[key as keyof QueryObserverResult]
-        },
-      })
+          return target[key as keyof QueryObserverResult]
+        }
+      },
     })
 
     return trackedResult