diff --git a/openrpc-server.asd b/openrpc-server.asd
index 480d5a5..70f97c8 100644
--- a/openrpc-server.asd
+++ b/openrpc-server.asd
@@ -6,6 +6,7 @@
   :defsystem-depends-on ("40ants-asdf-system")
   :pathname "server"
   :depends-on ("log4cl-extras"
+               "jsonrpc"
                "openrpc-server/server"
                "openrpc-server/class"
                "openrpc-server/discovery")