use backup_cycle_timeout as value
diff --git a/README.md b/README.md
index 7850642..9f0cfc4 100755
--- a/README.md
+++ b/README.md
@@ -47,7 +47,7 @@
 by only one incremental backup(not counting ). And 2 incremental if
 `full_backup_depth` set to 2. Set to `0` if want all full backups.
 
-To avoid long stucking backup action, config `backup_cycle_timout` should be
+To avoid long stucking backup action, config `backup_cycle_timeout` should be
 set with a reasonable time that long enough for backups to complete but good
 enough to judge the backup process is stucking. When a backup process reach
 this timeout, it will remove the backup task and try to delete the volume