diff --git a/webapp/src/Service/ImportExportService.php b/webapp/src/Service/ImportExportService.php
index 86c2c4919a..0a1a5136af 100644
--- a/webapp/src/Service/ImportExportService.php
+++ b/webapp/src/Service/ImportExportService.php
@@ -196,7 +196,7 @@ public function importContestData(mixed $data, ?string &$errorMessage = null, st
             }
         }
 
-        $deactivateTime = $this->convertImportedTime($deactivateTimeFields, $data, $errorMessage);
+        $deactivateTime = $this->convertImportedTime($deactivateTimeFields, $data, $errorMessage, contest: $contest);
         if ($errorMessage) {
             return false;
         }