diff --git a/cmd/root.go b/cmd/root.go
index 3ff6da8..e154c77 100644
--- a/cmd/root.go
+++ b/cmd/root.go
@@ -47,13 +47,11 @@ func handleEvent(event sdl.Event, m *milkDropWindow) bool {
 }
 
 func milkbucket(cmd *cobra.Command, args []string) {
-	fi, err := os.Stdin.Stat()
+	stat, err := os.Stdin.Stat()
 	if err != nil {
 		panic(err)
-	}
-	size := fi.Size()
-	if size <= 0 {
-		log.Fatal("stdin is empty")
+	} else if (stat.Mode() & os.ModeCharDevice) != 0 {
+		log.Fatal("nothing to read from stdin")
 	}
 
 	err = sdl.Init(sdl.INIT_VIDEO)