diff --git a/lua/typescript-tools/api.lua b/lua/typescript-tools/api.lua
index acddde4..e685936 100644
--- a/lua/typescript-tools/api.lua
+++ b/lua/typescript-tools/api.lua
@@ -141,18 +141,16 @@ end
 ---@param callback fun(params: table, result: table)|nil
 function M.request_diagnostics(callback)
   local text_document = vim.lsp.util.make_text_document_params()
-  local client = utils.get_clients {
-    name = plugin_config.plugin_name,
-    bufnr = vim.uri_to_bufnr(text_document.uri),
-  }
+  local bufnr = vim.uri_to_bufnr(text_document.uri)
+  local typescript_client = get_typescript_client(bufnr)
 
-  if #client == 0 then
+  if typescript_client == nil then
     return
   end
 
-  vim.lsp.buf_request(0, c.CustomMethods.Diagnostic, {
+  typescript_client.request(c.CustomMethods.Diagnostic, {
     textDocument = text_document,
-  }, callback)
+  }, callback, bufnr)
 end
 
 ---@param is_sync boolean