diff --git a/ext/bg/js/display-window.js b/ext/bg/js/display-window.js
index c3890721..ad193c5b 100644
--- a/ext/bg/js/display-window.js
+++ b/ext/bg/js/display-window.js
@@ -21,6 +21,7 @@ window.displayWindow = new class extends Display {
     constructor() {
         super($('#spinner'), $('#content'));
         $('#search').click(this.onSearch.bind(this));
+        window.wanakana.bind($('#query').get(0));
     }
 
     definitionAdd(definition, mode) {