diff --git a/ui/terminal/dumb_status.go b/ui/terminal/dumb_status.go
index f2fcba7..08ef373 100644
--- a/ui/terminal/dumb_status.go
+++ b/ui/terminal/dumb_status.go
@@ -16,19 +16,20 @@
 
 import (
 	"fmt"
+	"io"
 
 	"android/soong/ui/status"
 )
 
 type dumbStatusOutput struct {
-	writer    Writer
+	writer    io.Writer
 	formatter formatter
 }
 
 // NewDumbStatusOutput returns a StatusOutput that represents the
 // current build status similarly to Ninja's built-in terminal
 // output.
-func NewDumbStatusOutput(w Writer, formatter formatter) status.StatusOutput {
+func NewDumbStatusOutput(w io.Writer, formatter formatter) status.StatusOutput {
 	return &dumbStatusOutput{
 		writer:    w,
 		formatter: formatter,