diff --git a/sls/src/org/scala/abusers/sls/LSPCancelRequest.scala b/sls/src/org/scala/abusers/sls/LSPCancelRequest.scala
new file mode 100644
index 0000000..d940747
--- /dev/null
+++ b/sls/src/org/scala/abusers/sls/LSPCancelRequest.scala
@@ -0,0 +1,18 @@
+package org.scala.abusers.sls
+
+import jsonrpclib.fs2.*
+import jsonrpclib.CallId
+
+private case class LSPCancelRequest(id: CallId)
+
+object LSPCancelRequest {
+  import io.circe.Codec
+  given Codec[LSPCancelRequest] = Codec.derived[LSPCancelRequest]
+
+  val cancelTemplate: CancelTemplate = CancelTemplate
+    .make[LSPCancelRequest](
+      "$/cancelRequest",
+      _.id,
+      LSPCancelRequest(_)
+    )
+}
diff --git a/sls/src/org/scala/abusers/sls/SimpleLanguageServer.scala b/sls/src/org/scala/abusers/sls/SimpleLanguageServer.scala
index c56a486..71ed3d6 100644
--- a/sls/src/org/scala/abusers/sls/SimpleLanguageServer.scala
+++ b/sls/src/org/scala/abusers/sls/SimpleLanguageServer.scala
@@ -4,7 +4,6 @@ import cats.effect.*
 import cats.syntax.all.*
 import jsonrpclib.fs2.*
 import jsonrpclib.smithy4sinterop.ClientStub
-import jsonrpclib.CallId
 import org.scala.abusers.pc.IOCancelTokens
 import org.scala.abusers.pc.PresentationCompilerProvider
 
@@ -27,14 +26,12 @@ object BuildServer {
 object SimpleScalaServer extends IOApp.Simple {
   import jsonrpclib.smithy4sinterop.ServerEndpoints
 
-  val cancelEndpoint = CancelTemplate.make[CallId]("$/cancel", identity, identity)
-
   def run: IO[Unit] =
     runResource.useForever
 
   private def runResource =
     for {
-      fs2Channel           <- FS2Channel.resource[IO](cancelTemplate = cancelEndpoint.some)
+      fs2Channel           <- FS2Channel.resource[IO](cancelTemplate = LSPCancelRequest.cancelTemplate.some)
       client               <- ClientStub(SlsLanguageClient, fs2Channel).liftTo[IO].toResource
       serverImpl           <- server(client)
       serverEndpoints      <- ServerEndpoints(serverImpl).liftTo[IO].toResource