diff --git a/src/log/syslog/doc.go b/src/log/syslog/doc.go
index dfcc2dde34..5458523249 100644
--- a/src/log/syslog/doc.go
+++ b/src/log/syslog/doc.go
@@ -10,7 +10,7 @@
 // the syslog client will attempt to reconnect to the server
 // and write again.
 //
-// The syslog package is frozen and not accepting new features.
+// The syslog package is frozen and is not accepting new features.
 // Some external packages provide more functionality. See:
 //
 //   https://godoc.org/?q=syslog
diff --git a/src/net/rpc/server.go b/src/net/rpc/server.go
index 4920c668ea..83d9aac10c 100644
--- a/src/net/rpc/server.go
+++ b/src/net/rpc/server.go
@@ -121,6 +121,8 @@
 
 	A server implementation will often provide a simple, type-safe wrapper for the
 	client.
+
+	The net/rpc package is frozen and is not accepting new features.
 */
 package rpc
 
diff --git a/src/net/smtp/smtp.go b/src/net/smtp/smtp.go
index 9e04dd7c82..48f38894fd 100644
--- a/src/net/smtp/smtp.go
+++ b/src/net/smtp/smtp.go
@@ -9,7 +9,7 @@
 //	STARTTLS  RFC 3207
 // Additional extensions may be handled by clients.
 //
-// The smtp package is frozen and not accepting new features.
+// The smtp package is frozen and is not accepting new features.
 // Some external packages provide more functionality. See:
 //
 //   https://godoc.org/?q=smtp
diff --git a/src/testing/quick/quick.go b/src/testing/quick/quick.go
index cbf9584041..95860fda0f 100644
--- a/src/testing/quick/quick.go
+++ b/src/testing/quick/quick.go
@@ -4,7 +4,7 @@
 
 // Package quick implements utility functions to help with black box testing.
 //
-// The package is frozen and not accepting new features.
+// The testing/quick package is frozen and is not accepting new features.
 package quick
 
 import (
diff --git a/src/text/tabwriter/tabwriter.go b/src/text/tabwriter/tabwriter.go
index befcacf01b..752c9b8e9f 100644
--- a/src/text/tabwriter/tabwriter.go
+++ b/src/text/tabwriter/tabwriter.go
@@ -8,7 +8,7 @@
 // The package is using the Elastic Tabstops algorithm described at
 // http://nickgravgaard.com/elastictabstops/index.html.
 //
-// The package is frozen and not accepting new features.
+// The text/tabwriter package is frozen and is not accepting new features.
 package tabwriter
 
 import (