diff --git a/htdocs/core/modules/export/export_excel2007new.modules.php b/htdocs/core/modules/export/export_excel2007new.modules.php
index 0567e4b21f2..31b3fcfdd0b 100644
--- a/htdocs/core/modules/export/export_excel2007new.modules.php
+++ b/htdocs/core/modules/export/export_excel2007new.modules.php
@@ -60,6 +60,8 @@ class ExportExcel2007new extends ModeleExports
 
 	public $worksheet; // Handle sheet
 
+	public $styleArray;
+
 	public $row;
 
 	public $col;