diff --git a/src/why-exercise.md b/src/why-exercise.md
index 77cf07e..b8f94a9 100644
--- a/src/why-exercise.md
+++ b/src/why-exercise.md
@@ -1,5 +1,5 @@
 # Rust By Practice
-This book was designed for easily diving into Rust，and it's very easy to use: All you need to do is to make each exercise comipile without ERRORS and Panics !
+This book was designed for easily diving into Rust，and it's very easy to use: All you need to do is to make each exercise compile without ERRORS and Panics !
   
 ## Features
 
@@ -66,4 +66,4 @@ fn main() {
         None => (),
     }
 }
-```
\ No newline at end of file
+```