diff --git a/sphinx_search/static/js/rtd_sphinx_search.js b/sphinx_search/static/js/rtd_sphinx_search.js
index 04ac446..9669354 100644
--- a/sphinx_search/static/js/rtd_sphinx_search.js
+++ b/sphinx_search/static/js/rtd_sphinx_search.js
@@ -809,6 +809,7 @@ window.addEventListener("DOMContentLoaded", () => {
         // Escape button
         document.addEventListener("keydown", e => {
             if (e.keyCode === 27) {
+                e.preventDefault();
                 removeSearchModal();
             }
         });