diff --git a/README.md b/README.md
index 4d0f561..0133c56 100644
--- a/README.md
+++ b/README.md
@@ -39,7 +39,7 @@ The number of characters that need to be typed to trigger auto-completion.
 
 ### keyword_pattern (type: string)
 
-_Default:_ `[[\%(-\?\d\+\%(\.\d\+\)\?\|\h\w*\%([\-.]\w*\)*\)]]`
+_Default:_ `[[\%(-\?\d\+\%(\.\d\+\)\?\|\%(\h\|[\u00C0-\u00D6]\|[\u00D8-\u00F6]\|[\u00F8-\u02AF]\)\%(\w\|[\u00C0-\u00D6]\|[\u00D8-\u00F6]\|[\u00F8-\u02AF]\)*\%(-\%(\w\|[\u00C0-\u00D6]\|[\u00D8-\u00F6]\|[\u00F8-\u02AF]\)*\)*\)]]`
 
 A vim's regular expression for creating a word list from buffer content.
 
diff --git a/lua/cmp_buffer/source.lua b/lua/cmp_buffer/source.lua
index 9be673c..758e189 100644
--- a/lua/cmp_buffer/source.lua
+++ b/lua/cmp_buffer/source.lua
@@ -11,7 +11,7 @@ local buffer = require('cmp_buffer.buffer')
 ---@type cmp_buffer.Options
 local defaults = {
   keyword_length = 3,
-  keyword_pattern = [[\%(-\?\d\+\%(\.\d\+\)\?\|\h\%(\w\|á\|Á\|é\|É\|í\|Í\|ó\|Ó\|ú\|Ú\)*\%(-\%(\w\|á\|Á\|é\|É\|í\|Í\|ó\|Ó\|ú\|Ú\)*\)*\)]],
+  keyword_pattern = [[\%(-\?\d\+\%(\.\d\+\)\?\|\%(\h\|[\u00C0-\u00D6]\|[\u00D8-\u00F6]\|[\u00F8-\u02AF]\)\%(\w\|[\u00C0-\u00D6]\|[\u00D8-\u00F6]\|[\u00F8-\u02AF]\)*\%(-\%(\w\|[\u00C0-\u00D6]\|[\u00D8-\u00F6]\|[\u00F8-\u02AF]\)*\)*\)]],
   get_bufnrs = function()
     return { vim.api.nvim_get_current_buf() }
   end,