diff --git a/practices/doc-comments/src/lib.rs b/practices/doc-comments/src/lib.rs
index 645b77f..638aef3 100644
--- a/practices/doc-comments/src/lib.rs
+++ b/practices/doc-comments/src/lib.rs
@@ -42,7 +42,7 @@ pub fn add_three(x: i32) -> Option<i32> {
 }
 
 mod a {
-    ///  Add four to the given value and return a [`Option`] type
+    /// Add four to the given value and return a [`Option`] type
     /// [`crate::MySpecialFormatter`]
     pub fn add_four(x: i32) -> Option<i32> {
         Some(x + 4)