diff --git a/README.md b/README.md
index 25a63f3a..a41aaa63 100644
--- a/README.md
+++ b/README.md
@@ -38,6 +38,7 @@ Edit `src/main/java/com/example/App.java` and replace it with:
     
     import java.io.IOException;
     import java.util.Map;
+    import java.util.List;
     
     import fi.iki.elonen.NanoHTTPD;
     // NOTE: If you're using NanoHTTPD >= 3.0.0 the namespace is different,
@@ -63,11 +64,11 @@ Edit `src/main/java/com/example/App.java` and replace it with:
         @Override
         public Response serve(IHTTPSession session) {
             String msg = "<html><body><h1>Hello server</h1>\n";
-            Map<String, String> parms = session.getParms();
+            Map<String, List<String>> parms = session.getParameters();
             if (parms.get("username") == null) {
                 msg += "<form action='?' method='get'>\n  <p>Your name: <input type='text' name='username'></p>\n" + "</form>\n";
             } else {
-                msg += "<p>Hello, " + parms.get("username") + "!</p>";
+                msg += "<p>Hello, " + parms.get("username").get(0) + "!</p>";
             }
             return newFixedLengthResponse(msg + "</body></html>\n");
         }
