diff --git a/src/json.rs b/src/json.rs
index 93cff413..a33fa46d 100644
--- a/src/json.rs
+++ b/src/json.rs
@@ -85,6 +85,7 @@ pub struct JsonBody<S, T: DeserializeOwned>{
 
 impl<S, T: DeserializeOwned> JsonBody<S, T> {
 
+    /// Create `JsonBody` for request.
     pub fn from_request(req: &mut HttpRequest<S>) -> Self {
         JsonBody{
             limit: 262_144,