diff --git a/src/key-handler/index.tsx b/src/key-handler/index.tsx
index 3bf074e..f814c07 100644
--- a/src/key-handler/index.tsx
+++ b/src/key-handler/index.tsx
@@ -20,6 +20,7 @@ type KeyboardEventHandler = (event: KeyboardEvent) => void;
 
 interface LeafProp {
   handler: KeyboardEventHandler;
+  preventDefault?: boolean;
 }
 
 interface NodeProp {
@@ -35,6 +36,7 @@ export function KeyHandler(props: KeyHandlerProps) {
   const [shouldRenderChildren, setShouldRenderChildren] = useState(false);
   const handler = "handler" in rest ? rest.handler : null;
   const children = "children" in rest ? rest.children : null;
+  const preventDefault = "preventDefault" in rest ? rest.preventDefault : false;
 
   useLayoutEffect(
     function handlerLifecycle() {
@@ -44,6 +46,10 @@ export function KeyHandler(props: KeyHandlerProps) {
         };
       }
       const wrappedHandler = (e: KeyboardEvent) => {
+        if (preventDefault) {
+          e.preventDefault();
+        }
+
         if (handler) {
           handler(e);
           focusedStack.tearDown();