diff --git a/htdocs/core/class/commonobject.class.php b/htdocs/core/class/commonobject.class.php
index 7917234158e..1a26fba6b23 100644
--- a/htdocs/core/class/commonobject.class.php
+++ b/htdocs/core/class/commonobject.class.php
@@ -4226,7 +4226,10 @@ abstract class CommonObject
 	{
 		$this->db->begin();
 
-		$sql_del = "DELETE FROM ".MAIN_DB_PREFIX.$this->table_element."_extrafields WHERE fk_object = ".$this->id;
+		$table_element = $this->table_element;
+		if ($table_element == 'categorie') $table_element = 'categories'; // For compatibility
+
+		$sql_del = "DELETE FROM ".MAIN_DB_PREFIX.$table_element."_extrafields WHERE fk_object = ".$this->id;
 		dol_syslog(get_class($this)."::deleteExtraFields delete", LOG_DEBUG);
 		$resql=$this->db->query($sql_del);
 		if (! $resql)