--- a/src/mesh/model/dot11s/ie-dot11s-beacon-timing.cc	Tue May 15 22:19:39 2018 +0200
+++ b/src/mesh/model/dot11s/ie-dot11s-beacon-timing.cc	Tue May 15 22:20:41 2018 +0200
@@ -206,7 +206,7 @@
         }
       return true;
     }
-  catch (std::bad_cast)
+  catch (std::bad_cast&)
     {
       return false;
     }