diff --git a/docs/examples/sprites.html b/docs/examples/sprites.html
index 66ce742af..10186d55d 100644
--- a/docs/examples/sprites.html
+++ b/docs/examples/sprites.html
@@ -133,9 +133,7 @@ func update(screen *ebiten.Image) error {
         msg := fmt.Sprintf(`FPS: %0.2f
 Num of sprites: %d
 Press <- or -> to change the number of sprites`, ebiten.CurrentFPS(), sprites.num)
-        if err := ebitenutil.DebugPrint(screen, msg); err != nil {
-                return err
-        }
+        ebitenutil.DebugPrint(screen, msg)
         return nil
 }
 
diff --git a/examples/sprites/main.go b/examples/sprites/main.go
index 3fe39b50d..d4580c3ea 100644
--- a/examples/sprites/main.go
+++ b/examples/sprites/main.go
@@ -120,9 +120,7 @@ func update(screen *ebiten.Image) error {
 	msg := fmt.Sprintf(`FPS: %0.2f
 Num of sprites: %d
 Press <- or -> to change the number of sprites`, ebiten.CurrentFPS(), sprites.num)
-	if err := ebitenutil.DebugPrint(screen, msg); err != nil {
-		return err
-	}
+	ebitenutil.DebugPrint(screen, msg)
 	return nil
 }