diff --git a/Readme.markdown b/Readme.markdown
index a0200c9..0ee2926 100644
--- a/Readme.markdown
+++ b/Readme.markdown
@@ -44,6 +44,7 @@ Java language:
 
     import java.awt.image.BufferedImage;
     import java.io.File;
+    import java.util.List;
     import javax.imageio.ImageIO;
     import io.nayuki.qrcodegen.*;