diff --git a/src/network/access/qhttpnetworkheader.cpp b/src/network/access/qhttpnetworkheader.cpp
index af9f38cdec..cf8259294d 100644
--- a/src/network/access/qhttpnetworkheader.cpp
+++ b/src/network/access/qhttpnetworkheader.cpp
@@ -79,16 +79,8 @@ QByteArray QHttpNetworkHeaderPrivate::headerField(const QByteArray &name, const
     QList<QByteArray> allValues = headerFieldValues(name);
     if (allValues.isEmpty())
         return defaultValue;
-
-    QByteArray result;
-    bool first = true;
-    foreach (const QByteArray &value, allValues) {
-        if (!first)
-            result += ", ";
-        first = false;
-        result += value;
-    }
-    return result;
+    else
+        return allValues.join(", ");
 }
 
 QList<QByteArray> QHttpNetworkHeaderPrivate::headerFieldValues(const QByteArray &name) const