diff --git a/src/delay.rs b/src/delay.rs
index fc06fa4..82e7749 100644
--- a/src/delay.rs
+++ b/src/delay.rs
@@ -1,4 +1,4 @@
-//! Simple busy-loop delay provider
+//! SYSTICK based delay implementation for Qingke V2
 
 use pac::systick::vals;