diff --git a/js/spatial-navigation.js b/js/spatial-navigation.js
index b2bd76c..994e2ff 100644
--- a/js/spatial-navigation.js
+++ b/js/spatial-navigation.js
@@ -1842,6 +1842,10 @@ function removeFromKeysDown(e) {
 }
 
 function addToKeysDown(e) {
+  if (e.metaKey) KEYS_DOWN.add("meta");
+  if (e.ctrlKey) KEYS_DOWN.add("control");
+  if (e.altKey) KEYS_DOWN.add("alt");
+  if (e.shiftKey) KEYS_DOWN.add("shift");
   KEYS_DOWN.add(e.key.toLowerCase());
 }
 exports.addToKeysDown = addToKeysDown;