diff --git a/DOCS/man/options.rst b/DOCS/man/options.rst
index 934eda40cf..b3a8e95500 100644
--- a/DOCS/man/options.rst
+++ b/DOCS/man/options.rst
@@ -3091,7 +3091,7 @@ Cache
     This option allows control over this.
 
 ``--cache-backbuffer=<kBytes>``
-    Size of the cache back buffer (default: 75 KB). This will add to the total
+    Size of the cache back buffer (default: 75000 KB). This will add to the total
     cache size, and reserved the amount for seeking back. The reserved amount
     will not be used for readahead, and instead preserves already read data to
     enable fast seeking back.