diff --git a/modules/home/firefox/tridactyl/default.nix b/modules/home/firefox/tridactyl/default.nix
index 11e5c80..6fcf8ce 100644
--- a/modules/home/firefox/tridactyl/default.nix
+++ b/modules/home/firefox/tridactyl/default.nix
@@ -25,7 +25,7 @@ in
         # Use my configured terminal
         term
         # Make it easy to pick out with a window class name
-        "--class tridactyl_editor"
+        "--title=tridactyl_editor"
         # Open vim with the cursor in the correct position
         vimCommandLine
       ];
diff --git a/modules/home/wm/i3/default.nix b/modules/home/wm/i3/default.nix
index 564aead..f2dd051 100644
--- a/modules/home/wm/i3/default.nix
+++ b/modules/home/wm/i3/default.nix
@@ -123,7 +123,7 @@ in
           inherit modifier;
 
           criteria = [
-            { class = "^tridactyl_editor$"; }
+            { title = "^tridactyl_editor$"; }
             { class = "^Blueman-.*$"; }
             { title = "^htop$"; }
             { class = "^Thunderbird$"; instance = "Mailnews"; window_role = "filterlist"; }