diff --git a/docs/external_usb_ssd_UAS.md b/docs/external_usb_ssd_UAS.md
index eb83b77..44b0aed 100644
--- a/docs/external_usb_ssd_UAS.md
+++ b/docs/external_usb_ssd_UAS.md
@@ -14,7 +14,7 @@
 
 ----
 
-## OPEN Trim for external usb ssd
+## OPEN Trim for external USB SSD
 
 #### 1. Check TRIM support**