diff --git a/src/httprequest.rs b/src/httprequest.rs
index fe5f7215d..90e2ecd17 100644
--- a/src/httprequest.rs
+++ b/src/httprequest.rs
@@ -1,11 +1,12 @@
-//! Pieces pertaining to the HTTP message protocol.
-use std::{io, str};
+//! HTTP Request message related code.
+use std::str;
 use url::form_urlencoded;
 use http::{header, Method, Version, Uri, HeaderMap};
 
 use Params;
 use {Cookie, CookieParseError};
 use {HttpRange, HttpRangeParseError};
+use error::ParseError;
 
 
 #[derive(Debug)]
@@ -162,13 +163,12 @@ impl HttpRequest {
     }
 
     /// Check if request has chunked transfer encoding
-    pub fn chunked(&self) -> Result<bool, io::Error> {
+    pub fn chunked(&self) -> Result<bool, ParseError> {
         if let Some(encodings) = self.headers().get(header::TRANSFER_ENCODING) {
             if let Ok(s) = encodings.to_str() {
                 Ok(s.to_lowercase().contains("chunked"))
             } else {
-                Err(io::Error::new(
-                    io::ErrorKind::Other, "Can not read transfer-encoding header"))
+                Err(ParseError::Header)
             }
         } else {
             Ok(false)
diff --git a/tests/test_httprequest.rs b/tests/test_httprequest.rs
index f2276ebab..8d1c594e4 100644
--- a/tests/test_httprequest.rs
+++ b/tests/test_httprequest.rs
@@ -2,6 +2,7 @@ extern crate actix_web;
 extern crate http;
 extern crate time;
 
+use std::str;
 use actix_web::*;
 use http::{header, Method, Uri, Version, HeaderMap, HttpTryFrom};
 
@@ -87,3 +88,26 @@ fn test_request_match_info() {
     let req = req.with_match_info(params);
     assert_eq!(req.match_info().find("key"), Some("value"));
 }
+
+#[test]
+fn test_chunked() {
+    let req = HttpRequest::new(
+        Method::GET, Uri::try_from("/").unwrap(), Version::HTTP_11, HeaderMap::new());
+    assert!(!req.chunked().unwrap());
+
+    let mut headers = HeaderMap::new();
+    headers.insert(header::TRANSFER_ENCODING,
+                   header::HeaderValue::from_static("chunked"));
+    let req = HttpRequest::new(
+        Method::GET, Uri::try_from("/").unwrap(), Version::HTTP_11, headers);
+    assert!(req.chunked().unwrap());
+
+    let mut headers = HeaderMap::new();
+    let s = unsafe{str::from_utf8_unchecked(b"some va\xadscc\xacas0xsdasdlue".as_ref())};
+
+    headers.insert(header::TRANSFER_ENCODING,
+                   header::HeaderValue::from_str(s).unwrap());
+    let req = HttpRequest::new(
+        Method::GET, Uri::try_from("/").unwrap(), Version::HTTP_11, headers);
+    assert!(req.chunked().is_err());
+}