diff --git a/Documentation/filesystems/ubifs.rst b/Documentation/filesystems/ubifs.rst
index e6ee99762534545b9009a7683e16bc4004c96074..ced2f7679ddb5432d6c5bf99868194ee8ce59c8d 100644
--- a/Documentation/filesystems/ubifs.rst
+++ b/Documentation/filesystems/ubifs.rst
@@ -59,7 +59,7 @@ differences.
 * JFFS2 is a write-through file-system, while UBIFS supports write-back,
   which makes UBIFS much faster on writes.
 
-Similarly to JFFS2, UBIFS supports on-the-flight compression which makes
+Similarly to JFFS2, UBIFS supports on-the-fly compression which makes
 it possible to fit quite a lot of data to the flash.
 
 Similarly to JFFS2, UBIFS is tolerant of unclean reboots and power-cuts.