diff --git a/docs/KNOWN_BUGS b/docs/KNOWN_BUGS
index 386712c003..f5b7c844c3 100644
--- a/docs/KNOWN_BUGS
+++ b/docs/KNOWN_BUGS
@@ -12,6 +12,9 @@ may have been fixed since this was written!
 
 * GOPHER transfers seem broken
 
+* configure --disable-http is not fully supported. All other protocols seem
+  to work to disable.
+
 * If a HTTP server responds to a HEAD request and includes a body (thus
   violating the RFC2616), curl won't wait to read the response but just stop
   reading and return back. If a second request (let's assume a GET) is then