diff --git a/tests/auto/network/access/http2/tst_http2.cpp b/tests/auto/network/access/http2/tst_http2.cpp
index 76eb431af6..579eb89c0a 100644
--- a/tests/auto/network/access/http2/tst_http2.cpp
+++ b/tests/auto/network/access/http2/tst_http2.cpp
@@ -70,6 +70,8 @@ class tst_Http2 : public QObject
 public:
     tst_Http2();
     ~tst_Http2();
+public slots:
+    void init();
 private slots:
     // Tests:
     void singleRequest_data();
@@ -173,6 +175,11 @@ tst_Http2::~tst_Http2()
     }
 }
 
+void tst_Http2::init()
+{
+    manager.clearConnectionCache();
+}
+
 void tst_Http2::singleRequest_data()
 {
     QTest::addColumn<QNetworkRequest::Attribute>("h2Attribute");