diff --git a/modules/document/document.controller.php b/modules/document/document.controller.php
index aee5f5123..792ae9bcf 100644
--- a/modules/document/document.controller.php
+++ b/modules/document/document.controller.php
@@ -166,7 +166,7 @@ class documentController extends document {
 		// Set to 0 if the category_srl doesn't exist
 		if($obj->category_srl) {
 			$category_list = $oDocumentModel->getCategoryList($obj->module_srl);
-			if(!$category_list[$obj->category_srl]->grant)
+			if(count($category_list) > 0 && !$category_list[$obj->category_srl]->grant)
 			{
 				return new Object(-1, 'msg_not_permitted');
 			}