diff --git a/modules/programs/tmux/default.nix b/modules/programs/tmux/default.nix
index 8df5809..2e36ac9 100644
--- a/modules/programs/tmux/default.nix
+++ b/modules/programs/tmux/default.nix
@@ -47,7 +47,7 @@ in
     enable = mkEnableOption "tmux";
     autoAttach = mkEnableOption "autoAttach";
     keybinds = mkOption {
-      type = with types; attrsOf (attrsOf string);
+      type = with types; attrsOf (attrsOf str);
       default = { };
       description = "Keybinds for tmux";
       example = literalExample ''