diff --git a/CHANGELOG.md b/CHANGELOG.md
index e314e93a..c7f7703b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -144,6 +144,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
         // ...
     }
     ```
+- Misc:
+  - `InvalidWebsocketVersionHeader` has been renamed to `InvalidWebSocketVersionHeader` ([#416])
+  - `WebsocketKeyHeaderMissing` has been renamed to `WebSocketKeyHeaderMissing` ([#416])
 
 [#339]: https://github.com/tokio-rs/axum/pull/339
 [#286]: https://github.com/tokio-rs/axum/pull/286
@@ -156,6 +159,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 [#405]: https://github.com/tokio-rs/axum/pull/405
 [#408]: https://github.com/tokio-rs/axum/pull/408
 [#412]: https://github.com/tokio-rs/axum/pull/412
+[#416]: https://github.com/tokio-rs/axum/pull/416
 
 # 0.2.8 (07. October, 2021)
 
diff --git a/examples/chat/chat.html b/examples/chat/chat.html
index d1c665e0..c062f380 100644
--- a/examples/chat/chat.html
+++ b/examples/chat/chat.html
@@ -1,52 +1,52 @@
 <!DOCTYPE html>
 <html lang="en">
-	<head>
-		<meta charset="UTF-8">
-		<title>Websocket Chat</title>
-	</head>
-	<body>
-		<h1>Websocket Chat Example</h1>
+    <head>
+        <meta charset="UTF-8">
+        <title>WebSocket Chat</title>
+    </head>
+    <body>
+        <h1>WebSocket Chat Example</h1>
 
-		<input id="username" style="display:block; width:100px; box-sizing: border-box" type="text" placeholder="username">
-		<button id="join-chat" type="button">Join Chat</button>
-		<textarea id="chat" style="display:block; width:600px; height:400px; box-sizing: border-box" cols="30" rows="10"></textarea>
-		<input id="input" style="display:block; width:600px; box-sizing: border-box" type="text" placeholder="chat">
+        <input id="username" style="display:block; width:100px; box-sizing: border-box" type="text" placeholder="username">
+        <button id="join-chat" type="button">Join Chat</button>
+        <textarea id="chat" style="display:block; width:600px; height:400px; box-sizing: border-box" cols="30" rows="10"></textarea>
+        <input id="input" style="display:block; width:600px; box-sizing: border-box" type="text" placeholder="chat">
 
-		<script>
-			const username = document.querySelector("#username");
-			const join_btn = document.querySelector("#join-chat");
-			const textarea = document.querySelector("#chat");
-			const input = document.querySelector("#input");
+        <script>
+            const username = document.querySelector("#username");
+            const join_btn = document.querySelector("#join-chat");
+            const textarea = document.querySelector("#chat");
+            const input = document.querySelector("#input");
 
-			join_btn.addEventListener("click", function(e) {
-				this.disabled = true;
+            join_btn.addEventListener("click", function(e) {
+                this.disabled = true;
 
-				const websocket = new WebSocket("ws://localhost:3000/websocket");
+                const websocket = new WebSocket("ws://localhost:3000/websocket");
 
-				websocket.onopen = function() {
-					console.log("connection opened");
-					websocket.send(username.value);
-				}
+                websocket.onopen = function() {
+                    console.log("connection opened");
+                    websocket.send(username.value);
+                }
 
-				const btn = this;
+                const btn = this;
 
-				websocket.onclose = function() {
-					console.log("connection closed");
-					btn.disabled = false;
-				}
+                websocket.onclose = function() {
+                    console.log("connection closed");
+                    btn.disabled = false;
+                }
 
-				websocket.onmessage = function(e) {
-					console.log("received message: "+e.data);
-					textarea.value += e.data+"\r\n";
-				}
+                websocket.onmessage = function(e) {
+                    console.log("received message: "+e.data);
+                    textarea.value += e.data+"\r\n";
+                }
 
-				input.onkeydown = function(e) {
-					if (e.key == "Enter") {
-						websocket.send(input.value);
-						input.value = "";
-					}
-				}
-			});
-		</script>
-	</body>
+                input.onkeydown = function(e) {
+                    if (e.key == "Enter") {
+                        websocket.send(input.value);
+                        input.value = "";
+                    }
+                }
+            });
+        </script>
+    </body>
 </html>
diff --git a/src/extract/ws.rs b/src/extract/ws.rs
index 4b76857c..c5a06989 100644
--- a/src/extract/ws.rs
+++ b/src/extract/ws.rs
@@ -209,7 +209,7 @@ where
         }
 
         if !header_eq(req, header::SEC_WEBSOCKET_VERSION, "13")? {
-            return Err(InvalidWebsocketVersionHeader.into());
+            return Err(InvalidWebSocketVersionHeader.into());
         }
 
         let sec_websocket_key = if let Some(key) = req
@@ -219,7 +219,7 @@ where
         {
             key
         } else {
-            return Err(WebsocketKeyHeaderMissing.into());
+            return Err(WebSocketKeyHeaderMissing.into());
         };
 
         let on_upgrade = req
@@ -309,7 +309,7 @@ where
                 } else {
                     return (
                         StatusCode::BAD_REQUEST,
-                        "`Sec-Websocket-Protocol` header is invalid",
+                        "`Sec-WebSocket-Protocol` header is invalid",
                     )
                         .into_response();
                 }
@@ -578,16 +578,16 @@ pub mod rejection {
 
     define_rejection! {
         #[status = BAD_REQUEST]
-        #[body = "`Sec-Websocket-Version` header did not include '13'"]
+        #[body = "`Sec-WebSocket-Version` header did not include '13'"]
         /// Rejection type for [`WebSocketUpgrade`](super::WebSocketUpgrade).
-        pub struct InvalidWebsocketVersionHeader;
+        pub struct InvalidWebSocketVersionHeader;
     }
 
     define_rejection! {
         #[status = BAD_REQUEST]
-        #[body = "`Sec-Websocket-Key` header missing"]
+        #[body = "`Sec-WebSocket-Key` header missing"]
         /// Rejection type for [`WebSocketUpgrade`](super::WebSocketUpgrade).
-        pub struct WebsocketKeyHeaderMissing;
+        pub struct WebSocketKeyHeaderMissing;
     }
 
     composite_rejection! {
@@ -599,8 +599,8 @@ pub mod rejection {
             MethodNotGet,
             InvalidConnectionHeader,
             InvalidUpgradeHeader,
-            InvalidWebsocketVersionHeader,
-            WebsocketKeyHeaderMissing,
+            InvalidWebSocketVersionHeader,
+            WebSocketKeyHeaderMissing,
             HeadersAlreadyExtracted,
             ExtensionsAlreadyExtracted,
         }
