diff --git a/Classes/PHPExcel/Reader/Excel5/Style/FillPattern.php b/Classes/PHPExcel/Reader/Excel5/Style/FillPattern.php
index 5d6b389..c92d19a 100644
--- a/Classes/PHPExcel/Reader/Excel5/Style/FillPattern.php
+++ b/Classes/PHPExcel/Reader/Excel5/Style/FillPattern.php
@@ -36,6 +36,6 @@ class PHPExcel_Reader_Excel5_Style_FillPattern
         if (isset(self::$map[$index])) {
             return self::$map[$index];
         }
-        return self::FILL_NONE;
+        return PHPExcel_Style_Fill::FILL_NONE;
     }
 }
\ No newline at end of file