diff --git a/crates/server/src/dispatch.rs b/crates/server/src/dispatch.rs
index 381649859f..bfdbd30ca7 100644
--- a/crates/server/src/dispatch.rs
+++ b/crates/server/src/dispatch.rs
@@ -10,7 +10,7 @@ use drop_bomb::DropBomb;
 use ::{
     Result,
     req::{ClientRequest, Notification},
-    io::{Io, RawMsg, RawResponse, RawRequest, RawNotification},
+    io::{RawResponse, RawRequest, RawNotification},
 };
 
 pub struct Responder<R: ClientRequest> {
@@ -113,9 +113,9 @@ pub fn send_notification<N>(params: N::Params) -> RawNotification
     }
 }
 
+pub fn unknown_method(id: u64) -> Result<RawResponse> {
+    error_response(id, ErrorCode::MethodNotFound, "unknown method")
 
-pub fn unknown_method(io: &mut Io, raw: RawRequest) -> Result<()> {
-    error(io, raw.id, ErrorCode::MethodNotFound, "unknown method")
 }
 
 fn error_response(id: u64, code: ErrorCode, message: &'static str) -> Result<RawResponse> {
@@ -135,13 +135,6 @@ fn error_response(id: u64, code: ErrorCode, message: &'static str) -> Result<Raw
     Ok(resp)
 }
 
-fn error(io: &mut Io, id: u64, code: ErrorCode, message: &'static str) -> Result<()> {
-    let resp = error_response(id, code, message)?;
-    io.send(RawMsg::Response(resp));
-    Ok(())
-}
-
-
 #[allow(unused)]
 enum ErrorCode {
     ParseError = -32700,
diff --git a/crates/server/src/main_loop/mod.rs b/crates/server/src/main_loop/mod.rs
index e7b24e53f2..e80b9988d3 100644
--- a/crates/server/src/main_loop/mod.rs
+++ b/crates/server/src/main_loop/mod.rs
@@ -102,7 +102,7 @@ fn on_msg(
             }
             if let Some(req) = req {
                 error!("unknown method: {:?}", req);
-                dispatch::unknown_method(io, req)?;
+                io.send(RawMsg::Response(dispatch::unknown_method(req.id)?));
             }
         }
         RawMsg::Notification(not) => {