diff --git a/src/PhpSpreadsheet/Writer/Xlsx/FunctionPrefix.php b/src/PhpSpreadsheet/Writer/Xlsx/FunctionPrefix.php
index f3b754df8..6f66eccfb 100644
--- a/src/PhpSpreadsheet/Writer/Xlsx/FunctionPrefix.php
+++ b/src/PhpSpreadsheet/Writer/Xlsx/FunctionPrefix.php
@@ -5,7 +5,7 @@ namespace PhpOffice\PhpSpreadsheet\Writer\Xlsx;
 class FunctionPrefix
 {
     const XLFNREGEXP = '/(?:_xlfn\.)?((?:_xlws\.)?\b('
-            // functions added with Excel 2010
+        // functions added with Excel 2010
         . 'beta[.]dist'
         . '|beta[.]inv'
         . '|binom[.]dist'