diff --git a/tests/benchmarks/core/tools/qhash/qhash_string.cpp b/tests/benchmarks/core/tools/qhash/qhash_string.cpp
index ba5cec0cb..d5f97186a 100644
--- a/tests/benchmarks/core/tools/qhash/qhash_string.cpp
+++ b/tests/benchmarks/core/tools/qhash/qhash_string.cpp
@@ -82,6 +82,7 @@ private slots:
     void qhash_qt4();
     void qhash_faster();
     void qhash_simple();
+    void qhash_simple_reserve();
 
 private:
     QString data();
@@ -136,6 +137,18 @@ void tst_QHash::qhash_simple()
     }
 }
 
+void tst_QHash::qhash_simple_reserve()
+{
+    QHash<int, int> hash;
+    hash.reserve(N);
+
+    QBENCHMARK {
+        for (int i = 0; i < N; i++) {
+            hash[i] = N;
+        }
+    }
+}
+
 QTEST_MAIN(tst_QHash)
 
 #include "moc_qhash_string.cpp"