diff --git a/src/cmd/go/pkg.go b/src/cmd/go/pkg.go
index ecb39d900a..6d8929b0a9 100644
--- a/src/cmd/go/pkg.go
+++ b/src/cmd/go/pkg.go
@@ -401,6 +401,10 @@ var goTools = map[string]targetDir{
 	"cmd/new6a":                            toTool,
 	"cmd/new8a":                            toTool,
 	"cmd/new9a":                            toTool,
+	"cmd/new5g":                            toTool,
+	"cmd/new6g":                            toTool,
+	"cmd/new8g":                            toTool,
+	"cmd/new9g":                            toTool,
 	"cmd/nm":                               toTool,
 	"cmd/objdump":                          toTool,
 	"cmd/objwriter":                        toTool,