diff --git a/src/header/common/content_type.rs b/src/header/common/content_type.rs
index 6ad2ac79..0124a79e 100644
--- a/src/header/common/content_type.rs
+++ b/src/header/common/content_type.rs
@@ -23,7 +23,7 @@ header! {
     ///
     /// # Example values
     /// * `text/html; charset=utf-8`
-    /// * `application/json
+    /// * `application/json`
     ///
     /// # Examples
     /// ```