diff --git a/lua/cmp_buffer/source.lua b/lua/cmp_buffer/source.lua
index 9be673c..bf75065 100644
--- a/lua/cmp_buffer/source.lua
+++ b/lua/cmp_buffer/source.lua
@@ -31,13 +31,11 @@ end
 ---@return cmp_buffer.Options
 source._validate_options = function(_, params)
   local opts = vim.tbl_deep_extend('keep', params.option, defaults)
-  vim.validate({
-    keyword_length = { opts.keyword_length, 'number' },
-    keyword_pattern = { opts.keyword_pattern, 'string' },
-    get_bufnrs = { opts.get_bufnrs, 'function' },
-    indexing_batch_size = { opts.indexing_batch_size, 'number' },
-    indexing_interval = { opts.indexing_interval, 'number' },
-  })
+  vim.validate('keyword_length', opts.keyword_length, 'number')
+  vim.validate('keyword_pattern', opts.keyword_pattern, 'string')
+  vim.validate('get_bufnrs', opts.get_bufnrs, 'function')
+  vim.validate('indexing_batch_size', opts.indexing_batch_size, 'number')
+  vim.validate('indexing_interval', opts.indexing_interval, 'number')
   return opts
 end