diff --git a/doc/pg_probackup.md b/doc/pg_probackup.md
index 09dfa80b..bf9a973f 100644
--- a/doc/pg_probackup.md
+++ b/doc/pg_probackup.md
@@ -492,10 +492,12 @@ Delete WAL files that are no longer necessary to restore from any of existing ba
 ### Retention policy options:
 
 --redundancy
+redundancy
 
 Specifies how many full backups purge command should keep.
 
 --window
+window
 
 Specifies the number of days of recoverability.