diff --git a/src/network/access/qnetworkreplyhttpimpl.cpp b/src/network/access/qnetworkreplyhttpimpl.cpp
index 9af7f7cda3..b13e9296c8 100644
--- a/src/network/access/qnetworkreplyhttpimpl.cpp
+++ b/src/network/access/qnetworkreplyhttpimpl.cpp
@@ -620,9 +620,9 @@ QHttpNetworkRequest::Priority QNetworkReplyHttpImplPrivate::convert(QNetworkRequ
     case QNetworkRequest::HighPriority:
         return QHttpNetworkRequest::HighPriority;
     case QNetworkRequest::NormalPriority:
-    default:
         return QHttpNetworkRequest::NormalPriority;
     }
+    Q_UNREACHABLE_RETURN(QHttpNetworkRequest::NormalPriority);
 }
 
 void QNetworkReplyHttpImplPrivate::postRequest(const QNetworkRequest &newHttpRequest)