diff --git a/src/plugins/mercurial/mercurialplugin.cpp b/src/plugins/mercurial/mercurialplugin.cpp
index 9e24422d181..6659766352d 100644
--- a/src/plugins/mercurial/mercurialplugin.cpp
+++ b/src/plugins/mercurial/mercurialplugin.cpp
@@ -133,7 +133,7 @@ bool MercurialPlugin::initialize(const QStringList & /* arguments */, QString *
         m_client->view(source, id);
     };
     const auto widgetCreator = []() { return new MercurialEditorWidget; };
-    for (auto editor : editorParameters)
+    for (auto &editor : editorParameters)
         new VcsEditorFactory(&editor, widgetCreator, describeFunc, this);
 
     new VcsSubmitEditorFactory(&submitEditorParameters,