diff --git a/src/main.ts b/src/main.ts
index 806f576..ee83786 100644
--- a/src/main.ts
+++ b/src/main.ts
@@ -111,7 +111,7 @@ $compile(
                  ["input", {
                    type: "text",
                    value: xs_,
-                   oninput: $input(ys)
+                   oninput: $input(xs)
                  }]]],
     ["div", {}, ["label", {}, "Y Pattern: ",
                  ["input", {