diff --git a/htdocs/webhook/class/target.class.php b/htdocs/webhook/class/target.class.php
index ef405bfadea..abd25cd844e 100644
--- a/htdocs/webhook/class/target.class.php
+++ b/htdocs/webhook/class/target.class.php
@@ -901,7 +901,7 @@ class Target extends CommonObject
 			$dir = dol_buildpath($reldir."core/modules/webhook/");
 
 			// Load file with numbering class (if found)
-			$mybool |= @include_once $dir.$file;
+			$mybool = ((bool) @include_once $dir.$file) || $mybool;
 		}
 
 		if ($mybool === false) {