diff --git a/convert.php b/convert.php
index 9a02ddb..e685681 100644
--- a/convert.php
+++ b/convert.php
@@ -46,4 +46,14 @@ class convert
     }
     return $date->format ($outputFormat);
   }
+
+  /** Convert the first char to capital and the rest of the sentence in
+    * lowercase (like ucfirst, but UTF8 compliant
+    * @param string $str The string to convert
+    */
+  public static function ucfirst ($str)
+  {
+    $a = mb_strtoupper (mb_substr ($str, 0, 1, 'UTF-8'), 'UTF-8');
+    return $a . mb_substr ($str, 1, null, 'UTF-8');
+  }
 }