diff --git a/cmd/gotext/doc.go b/cmd/gotext/doc.go
index 0e19297..fa247c6 100644
--- a/cmd/gotext/doc.go
+++ b/cmd/gotext/doc.go
@@ -8,11 +8,12 @@
 //
 // The commands are:
 //
+// 	update      merge translations and generate catalog
 // 	extract     extracts strings to be translated from code
 // 	rewrite     rewrites fmt functions to use a message Printer
 // 	generate    generates code to insert translated messages
 //
-// Use "go help [command]" for more information about a command.
+// Use "gotext help [command]" for more information about a command.
 //
 // Additional help topics:
 //
@@ -20,6 +21,15 @@
 // Use "gotext help [topic]" for more information about that topic.
 //
 //
+// Merge translations and generate catalog
+//
+// Usage:
+//
+// 	gotext update <package>* [-out <gofile>]
+//
+//
+//
+//
 // Extracts strings to be translated from code
 //
 // Usage:
diff --git a/cmd/gotext/main.go b/cmd/gotext/main.go
index 73f6d91..f31dd4f 100644
--- a/cmd/gotext/main.go
+++ b/cmd/gotext/main.go
@@ -170,7 +170,7 @@
 {{range .}}{{if .Runnable}}
 	{{.Name | printf "%-11s"}} {{.Short}}{{end}}{{end}}
 
-Use "go help [command]" for more information about a command.
+Use "gotext help [command]" for more information about a command.
 
 Additional help topics:
 {{range .}}{{if not .Runnable}}
@@ -180,7 +180,7 @@
 
 `
 
-var helpTemplate = `{{if .Runnable}}usage: go {{.UsageLine}}
+var helpTemplate = `{{if .Runnable}}usage: gotext {{.UsageLine}}
 
 {{end}}{{.Long | trim}}
 `
@@ -189,7 +189,7 @@
 
 {{end}}{{if .Runnable}}Usage:
 
-	go {{.UsageLine}}
+	gotext {{.UsageLine}}
 
 {{end}}{{.Long | trim}}
 
@@ -327,7 +327,7 @@
 		}
 	}
 
-	fmt.Fprintf(os.Stderr, "Unknown help topic %#q.  Run 'go help'.\n", arg)
+	fmt.Fprintf(os.Stderr, "Unknown help topic %#q.  Run 'gotext help'.\n", arg)
 	os.Exit(2) // failed at 'go help cmd'
 }