diff --git a/scripts/lib/image/help.py b/scripts/lib/image/help.py
index 6d613e260f..b833459aa0 100644
--- a/scripts/lib/image/help.py
+++ b/scripts/lib/image/help.py
@@ -719,6 +719,7 @@ DESCRIPTION
              ext3
              ext4
              btrfs
+             squashfs
              swap
 
          --fsoptions: Specifies a free-form string of options to be