diff --git a/src/infrastructure/storage/management/workflow/PhabricatorStorageManagementDumpWorkflow.php b/src/infrastructure/storage/management/workflow/PhabricatorStorageManagementDumpWorkflow.php
index dced62eee9..17491d55e9 100644
--- a/src/infrastructure/storage/management/workflow/PhabricatorStorageManagementDumpWorkflow.php
+++ b/src/infrastructure/storage/management/workflow/PhabricatorStorageManagementDumpWorkflow.php
@@ -237,7 +237,7 @@ final class PhabricatorStorageManagementDumpWorkflow
       $file = fopen($output_file, 'wb');
     }
 
-    if (!$file) {
+    if (($output_file !== null) && !$file) {
       throw new Exception(
         pht(
           'Failed to open file "%s" for writing.',