diff --git a/app/Http/Controllers/Api/ImportController.php b/app/Http/Controllers/Api/ImportController.php
index c18df26683..79bffd1206 100644
--- a/app/Http/Controllers/Api/ImportController.php
+++ b/app/Http/Controllers/Api/ImportController.php
@@ -195,7 +195,7 @@ class ImportController extends Controller
         // Run a backup immediately before processing
         if ($request->get('run-backup')) {
             Log::debug('Backup manually requested via importer');
-            Artisan::call('snipeit:backup', ['--filename' => 'pre-import-backup-'.date('Y-m-d-H:i:s')]);
+            Artisan::call('snipeit:backup', ['--filename' => 'pre-import-backup-'.date('Y-m-d-H-i-s')]);
         } else {
             Log::debug('NO BACKUP requested via importer');
         }