diff --git a/4chan_x.user.js b/4chan_x.user.js
index 755d2352f..99f1d37d9 100644
--- a/4chan_x.user.js
+++ b/4chan_x.user.js
@@ -1125,7 +1125,7 @@
         } else if (kc === 8) {
           key = '';
         }
-        if (key.length >= 0) {
+        if (key != null) {
           if (key) {
             if (e.altKey) {
               key = 'alt+' + key;
diff --git a/script.coffee b/script.coffee
index cdd792315..faa3720d5 100644
--- a/script.coffee
+++ b/script.coffee
@@ -896,7 +896,7 @@ options =
       else if kc is 8
         key = ''
 
-      if key.length >= 0
+      if key?
         if key
           key = 'alt+' + key  if e.altKey
           key = 'ctrl+' + key if e.ctrlKey