diff --git a/.gitignore b/.gitignore
index 0d3fe25..b84eb14 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
 result
 .direnv
 .pre-commit-config.yaml
+.gcroots
diff --git a/home-manager/gnome.nix b/home-manager/gnome.nix
index 3de2ead..ce22d6a 100644
--- a/home-manager/gnome.nix
+++ b/home-manager/gnome.nix
@@ -14,7 +14,7 @@ in {
 
     dconf.settings = with lib.hm.gvariant; {
       "org/gnome/desktop/sound".allow-volume-above-100-percent = true;
-      "org/gnome/desktop/wm.preferences".num-workspaces = 4;
+      "org/gnome/desktop/wm/preferences".num-workspaces = 4;
       "org/gnome/mutter".edge-tiling = true;
 
       "org/gnome/shell" = {