diff --git a/input/filters/eventlist.hpp b/input/filters/eventlist.hpp
index d7703fbc4..b3e2ff8f2 100644
--- a/input/filters/eventlist.hpp
+++ b/input/filters/eventlist.hpp
@@ -40,6 +40,8 @@ namespace Mangle
           }
       }
     };
+
+    typedef boost::shared_ptr<EventList> EventListPtr;
   }
 }
 #endif