diff --git a/src/net/http/server.go b/src/net/http/server.go
index e7323786..bcc283b 100644
--- a/src/net/http/server.go
+++ b/src/net/http/server.go
@@ -2512,7 +2512,9 @@
 	// ReadHeaderTimeout is the amount of time allowed to read
 	// request headers. The connection's read deadline is reset
 	// after reading the headers and the Handler can decide what
-	// is considered too slow for the body.
+	// is considered too slow for the body. If ReadHeaderTimeout
+	// is zero, the value of ReadTimeout is used. If both are
+	// zero, there is no timeout.
 	ReadHeaderTimeout time.Duration
 
 	// WriteTimeout is the maximum duration before timing out
@@ -2524,7 +2526,7 @@
 	// IdleTimeout is the maximum amount of time to wait for the
 	// next request when keep-alives are enabled. If IdleTimeout
 	// is zero, the value of ReadTimeout is used. If both are
-	// zero, ReadHeaderTimeout is used.
+	// zero, there is no timeout.
 	IdleTimeout time.Duration
 
 	// MaxHeaderBytes controls the maximum number of bytes the