diff --git a/src/corelib/tools/qcommandlineoption.cpp b/src/corelib/tools/qcommandlineoption.cpp
index 724803bce93..eb50cee5bb8 100644
--- a/src/corelib/tools/qcommandlineoption.cpp
+++ b/src/corelib/tools/qcommandlineoption.cpp
@@ -250,6 +250,7 @@ namespace {
         typedef bool result_type;
         typedef QString argument_type;
 
+        Q_NEVER_INLINE
         result_type operator()(const QString &name) const Q_DECL_NOEXCEPT
         {
             if (Q_UNLIKELY(name.isEmpty()))