diff --git a/src/corelib/tools/qstringbuilder.h b/src/corelib/tools/qstringbuilder.h
index 69bd344f47..fdd1aa3478 100644
--- a/src/corelib/tools/qstringbuilder.h
+++ b/src/corelib/tools/qstringbuilder.h
@@ -76,7 +76,7 @@ struct QStringBuilderCommon
     T toLower() const { return resolved().toLower(); }
 
 protected:
-    const T resolved() const { return *static_cast<const Builder*>(this); }
+    T resolved() const { return *static_cast<const Builder*>(this); }
 };
 
 template<typename Builder, typename T>