diff --git a/command/build/command.go b/command/build/command.go
index 02874d325..32f845625 100644
--- a/command/build/command.go
+++ b/command/build/command.go
@@ -82,7 +82,7 @@ func (Command) Run(env packer.Environment, args []string) int {
 		// Run the build in a goroutine
 		go func() {
 			defer wg.Done()
-			b.Run(env.Ui())
+			b.Run(buildUis[b.Name()])
 		}()
 	}