diff --git a/manager.hpp b/manager.hpp
index 47bd8b1..b9df746 100644
--- a/manager.hpp
+++ b/manager.hpp
@@ -97,7 +97,7 @@
     using Event = std::tuple<
         const char *,
         details::FilterBasePtr,
-        details::ActionBasePtr>;
+        std::vector<details::ActionBasePtr>>;
     using SigArgs = std::vector<
         std::unique_ptr<
             std::tuple<