diff --git a/inc/reference_supplier.class.php b/inc/reference_supplier.class.php
index 3115f1f2b5..bdb4ac5156 100644
--- a/inc/reference_supplier.class.php
+++ b/inc/reference_supplier.class.php
@@ -68,7 +68,7 @@ public function getFromDBByReference($plugin_order_references_id)
         ];
         $result = $DB->request($criteria);
 
-        if (count($result) != 1) {
+        if (count($result) !== 1) {
             return false;
         }
 
diff --git a/inc/surveysupplier.class.php b/inc/surveysupplier.class.php
index c9c2ef1c16..306af52697 100644
--- a/inc/surveysupplier.class.php
+++ b/inc/surveysupplier.class.php
@@ -68,7 +68,7 @@ public function getFromDBByOrder($plugin_order_orders_id)
         ];
 
         $iterator = $DB->request($criteria);
-        if (count($iterator) != 1) {
+        if (count($iterator) !== 1) {
             return false;
         }