diff --git a/include/fc/rpc/api_connection.hpp b/include/fc/rpc/api_connection.hpp
index 32258e7..8b0251b 100644
--- a/include/fc/rpc/api_connection.hpp
+++ b/include/fc/rpc/api_connection.hpp
@@ -7,6 +7,7 @@
 #include <vector>
 #include <functional>
 #include <utility>
+#include <fc/signals.hpp>
 //#include <fc/rpc/json_connection.hpp>
 
 namespace fc {