diff --git a/hecl/include/hecl/CVar.hpp b/hecl/include/hecl/CVar.hpp
index 384fe2164..29095b4fd 100644
--- a/hecl/include/hecl/CVar.hpp
+++ b/hecl/include/hecl/CVar.hpp
@@ -117,7 +117,7 @@ public:
    */
   void lock();
 
-  void addListener(ListenerFunc func) { m_listeners.push_back(func); }
+  void addListener(ListenerFunc func) { m_listeners.push_back(std::move(func)); }
 
 private:
   void dispatch();