diff --git a/root/usr/sbin/raspi-image b/root/usr/sbin/raspi-image
index 53e95a6..2e0a07e 100644
--- a/root/usr/sbin/raspi-image
+++ b/root/usr/sbin/raspi-image
@@ -260,7 +260,7 @@ EOL
 Usage: raspi-image -u (IMAGE)
 
 Description:
-  Umount the image which is mounted
+  Unmount the image which is mounted
   under '/mnt'.
 EOL
     ;;