diff --git a/src/xrpld/rpc/detail/RPCCall.cpp b/src/xrpld/rpc/detail/RPCCall.cpp
index 486e441319..e76983bdb4 100644
--- a/src/xrpld/rpc/detail/RPCCall.cpp
+++ b/src/xrpld/rpc/detail/RPCCall.cpp
@@ -451,7 +451,7 @@ private:
             jvRequest[jss::ip] = std::string{ip, 0, colon};
 
             if (auto const port = jvParseUInt(std::string{ip, colon + 1}))
-                jvRequest[jss::port] = port;
+                jvRequest[jss::port] = *port;
             else
                 return RPC::invalid_field_error(jss::port);