diff --git a/datalog-lsp/src/Datalog/LSP/Highlight.hs b/datalog-lsp/src/Datalog/LSP/Highlight.hs
index 6076a73..124d37f 100644
--- a/datalog-lsp/src/Datalog/LSP/Highlight.hs
+++ b/datalog-lsp/src/Datalog/LSP/Highlight.hs
@@ -20,7 +20,7 @@ tokenHandler = requestHandler SMethod_TextDocumentSemanticTokensFull $ \req resp
     responder $
         case M.lookup (currentBufferUri req) p of
             Nothing ->
-                Left $ TResponseError (InL LSPErrorCodes_RequestFailed) "Doc not bundle" Nothing
+                Left $ TResponseError (InL LSPErrorCodes_RequestFailed) "Doc not found in bundle" Nothing
             Just (Left _) ->
                 Left $ TResponseError (InL LSPErrorCodes_RequestFailed) "Failed to parse" Nothing
             Just (Right prog) ->