diff --git a/src/app/resource/controllers/IndexingController.php b/src/app/resource/controllers/IndexingController.php
index 99ba2edd469dd33f8228ffff7d876e5263d3ed61..370502149b40d519265e50b3a291bf9229edf5fe 100755
--- a/src/app/resource/controllers/IndexingController.php
+++ b/src/app/resource/controllers/IndexingController.php
@@ -260,7 +260,7 @@ class IndexingController
             }
             $delay = $priority['delays'];
         }
-        if (Validator::boolType()->notEmpty()->validate($queryParams['today'] ?? false)) {
+        if (Validator::boolType()->notEmpty()->validate((bool) $queryParams['today'] ?? false)) {
             $delay = 0;
         }
         if (!Validator::intVal()->validate($delay)) {