diff --git a/examples/material-ui/src/example/core.cljs b/examples/material-ui/src/example/core.cljs
index 1c8089e..064a751 100644
--- a/examples/material-ui/src/example/core.cljs
+++ b/examples/material-ui/src/example/core.cljs
@@ -114,7 +114,7 @@
       :placeholder "Placeholder"
       :helper-text "Helper text"
       :class (.-textField classes)
-      :on-change (fn [^js/DomEvent e]
+      :on-change (fn [e]
                    (reset! text-state (event-value e)))
       :multiline true
       ;; TODO: Autosize textarea is broken.