diff --git a/performance/random_speed.cpp b/performance/random_speed.cpp
index 147419129..4171d96d3 100644
--- a/performance/random_speed.cpp
+++ b/performance/random_speed.cpp
@@ -117,7 +117,7 @@ class GenericRandomGenerator
   typedef Ret result_type;
 
   GenericRandomGenerator() { };
-  void set(boost::shared_ptr<RandomGenBase<Ret> > p) { _p = p; }
+  void set(boost::shared_ptr<RandomGenBase<Ret> > p) { _p = std::move(p); }
   // takes over ownership
   void set(RandomGenBase<Ret> * p) { _p.reset(p); }
   Ret operator()() { return (*_p)(); }