diff --git a/mythtv/libs/libmyth/mythcontext.cpp b/mythtv/libs/libmyth/mythcontext.cpp
index be7981626a7..3f05ee2a62e 100644
--- a/mythtv/libs/libmyth/mythcontext.cpp
+++ b/mythtv/libs/libmyth/mythcontext.cpp
@@ -64,7 +64,7 @@ class GUISettingsCache
 {
   public:
     GUISettingsCache() = default;
-    GUISettingsCache(QString cache_filename, QString cache_path)
+    GUISettingsCache(const QString& cache_filename, QString cache_path)
         : m_cache_path(std::move(cache_path))
     {
         m_cache_filename = m_cache_path + '/' + cache_filename;