diff --git a/htdocs/comm/action/class/api_agendaevents.class.php b/htdocs/comm/action/class/api_agendaevents.class.php
index a2961b97974..d2e1fa9a645 100644
--- a/htdocs/comm/action/class/api_agendaevents.class.php
+++ b/htdocs/comm/action/class/api_agendaevents.class.php
@@ -66,7 +66,7 @@ class AgendaEvents extends DolibarrApi
 		if (!DolibarrApiAccess::$user->rights->agenda->myactions->read) {
 			throw new RestException(401, "Insufficient rights to read an event");
 		}
-		if ($id == 0) {
+		if ($id === 0) {
 			$result = $this->actioncomm->initAsSpecimen();
 		} else {
 			$result = $this->actioncomm->fetch($id);