diff --git a/src/services/Sites.php b/src/services/Sites.php
index 32daed14e77..a3769ef361d 100644
--- a/src/services/Sites.php
+++ b/src/services/Sites.php
@@ -1275,7 +1275,8 @@ private function _allSites(?bool $withDisabled = null): array
     {
         if ($withDisabled === null) {
             $request = Craft::$app->getRequest();
-            $withDisabled = !$request->getIsSiteRequest() || $request->getIsActionRequest();
+
+            $withDisabled = !$request->getIsSiteRequest() && $request->getIsActionRequest();
         }
 
         return $withDisabled ? $this->_allSitesById : $this->_enabledSitesById;