1 files changed, 1 insertions, 1 deletions
diff --git a/src/lb.hpp b/src/lb.hpp
index 70b9a04..25e216d 100644
--- a/src/lb.hpp
+++ b/src/lb.hpp
@@ -67,7 +67,7 @@ namespace zmq
         bool terminating;
 
         lb_t (const lb_t&);
-        void operator = (const lb_t&);
+        const lb_t &operator = (const lb_t&);
     };
 
 }