diff --git a/modules/dicom_archive/php/viewdetails.class.inc b/modules/dicom_archive/php/viewdetails.class.inc
index d1f0704cdbf..f7dd78f1501 100644
--- a/modules/dicom_archive/php/viewdetails.class.inc
+++ b/modules/dicom_archive/php/viewdetails.class.inc
@@ -91,7 +91,7 @@ class ViewDetails extends \NDB_Form
         if (is_null($pid)) {
             return null;
         }
-        return new \ProjectID($pid);
+        return \ProjectID::singleton($pid);
     }
 
     /**