diff --git a/htdocs/core/class/commonobject.class.php b/htdocs/core/class/commonobject.class.php
index a723d3e6a47..1b306e41960 100644
--- a/htdocs/core/class/commonobject.class.php
+++ b/htdocs/core/class/commonobject.class.php
@@ -11054,6 +11054,7 @@ abstract class CommonObject
 		if (!$error) {
 			$dir = getMultidirOutput($this)."/".dol_sanitizeFileName($this->ref);
 			// For remove dir
+			require_once DOL_DOCUMENT_ROOT . '/core/lib/files.lib.php';
 			if (dol_is_dir($dir)) {
 				if (!dol_delete_dir_recursive($dir)) {
 					$this->errors[] = 'ErrorFailToDeleteDir';
diff --git a/htdocs/core/lib/functions.lib.php b/htdocs/core/lib/functions.lib.php
index 366afdaaae1..85ecaa63815 100644
--- a/htdocs/core/lib/functions.lib.php
+++ b/htdocs/core/lib/functions.lib.php
@@ -158,6 +158,9 @@ function getMultidirOutput($object, $module = '', $forobject = 0, $mode = 'outpu
 	} elseif ($module == 'recruitmentcandidature') {
 		$module = 'recruitment';
 		$subdirectory = '/recruitmentcandidature';
+	} elseif ($module == 'knowledgerecord') {
+		$module = 'knowledgemanagement';
+		$subdirectory = '/knowledgerecord';
 	}
 
 	// Get the relative path of directory