diff --git a/src/cloudron.js b/src/cloudron.js
index 03cc136a0..9253f2b2d 100644
--- a/src/cloudron.js
+++ b/src/cloudron.js
@@ -117,7 +117,7 @@ function setUpdateSuccess(callback) {
         if (error) return callback(new CloudronError(CloudronError.INTERNAL_ERROR, error));
         if (results.length !== 1) return callback(); // when hotfixing
 
-        tasks.update(results[0].id, { percent: 100, errorMessage: null }, function (error) {
+        tasks.update(results[0].id, { percent: 100, error: null }, function (error) {
             if (error) return callback(new CloudronError(CloudronError.INTERNAL_ERROR, error));
 
             callback();