diff --git a/src/backups.js b/src/backups.js
index 556fbd954..a24eaf150 100644
--- a/src/backups.js
+++ b/src/backups.js
@@ -1232,7 +1232,7 @@ function startBackupTask(auditSource, callback) {
 
             eventlog.add(eventlog.ACTION_BACKUP_START, auditSource, { taskId });
 
-            tasks.startTask(taskId, { timeout: 12 * 60 * 60 * 1000 /* 12 hours */, nice: 15, memoryLimit }, function (error, backupId) {
+            tasks.startTask(taskId, { timeout: 24 * 60 * 60 * 1000 /* 24 hours */, nice: 15, memoryLimit }, function (error, backupId) {
                 locker.unlock(locker.OP_FULL_BACKUP);
 
                 const errorMessage = error ? error.message : '';