diff --git a/htdocs/lib/admin.lib.php b/htdocs/lib/admin.lib.php
index 62c28895d5f..95e8e01d378 100644
--- a/htdocs/lib/admin.lib.php
+++ b/htdocs/lib/admin.lib.php
@@ -390,8 +390,8 @@ function dolibarr_set_const($db, $name, $value, $type='chaine', $visible=0, $not
 	{
 		$sql = "INSERT INTO llx_const(name,value,type,visible,note,entity)";
 		$sql.= " VALUES (";
-		$sql.= "'".addslashes($db->encrypt($name,$conf->db->dolibarr_main_db_encryption,$conf->db->dolibarr_main_db_cryptkey,0))."'";
-		$sql.= ",'".addslashes($db->encrypt($value,$conf->db->dolibarr_main_db_encryption,$conf->db->dolibarr_main_db_cryptkey,0))."'";
+		$sql.= $db->encrypt($name,$conf->db->dolibarr_main_db_encryption,$conf->db->dolibarr_main_db_cryptkey,1);
+		$sql.= ", ".$db->encrypt($value,$conf->db->dolibarr_main_db_encryption,$conf->db->dolibarr_main_db_cryptkey,1);
 		$sql.= ",'".$type."',".$visible.",'".addslashes($note)."',".$entity.")";
 
 		dol_syslog("admin.lib::dolibarr_set_const sql=".$sql, LOG_DEBUG);
diff --git a/htdocs/lib/databases/mysqli.lib.php b/htdocs/lib/databases/mysqli.lib.php
index fd62e6feb51..b29d0dcb9f9 100644
--- a/htdocs/lib/databases/mysqli.lib.php
+++ b/htdocs/lib/databases/mysqli.lib.php
@@ -712,7 +712,7 @@ class DoliDb
 			}
 		}
 
-		return ($withQuotes?"'":"").$return.($withQuotes?"'":"");
+		return $return;
 	}
 
 	/**