diff --git a/doc/html/group__context-and-vhost.html b/doc/html/group__context-and-vhost.html
index 8cb9ab3f..01e6f338 100644
--- a/doc/html/group__context-and-vhost.html
+++ b/doc/html/group__context-and-vhost.html
@@ -321,7 +321,7 @@ Functions</h2></td></tr>
 
  HTTP requests are sent always to the FIRST protocol in protocol, since
  at that time websocket protocol has not been negotiated.  Other
- protocols after the first one never see any HTTP callack activity.
+ protocols after the first one never see any HTTP callback activity.
 
  The server created is a simple http server by default; part of the
  websocket standard is upgrading this http connection to a websocket one.
diff --git a/lib/libwebsockets.h b/lib/libwebsockets.h
index 4d33d59a..28615667 100644
--- a/lib/libwebsockets.h
+++ b/lib/libwebsockets.h
@@ -1752,7 +1752,7 @@ struct lws_context_creation_info {
  *
  *	HTTP requests are sent always to the FIRST protocol in protocol, since
  *	at that time websocket protocol has not been negotiated.  Other
- *	protocols after the first one never see any HTTP callack activity.
+ *	protocols after the first one never see any HTTP callback activity.
  *
  *	The server created is a simple http server by default; part of the
  *	websocket standard is upgrading this http connection to a websocket one.