diff --git a/plugins/statuslines/airline.nix b/plugins/statuslines/airline.nix
index b9498fd8..885c134d 100644
--- a/plugins/statuslines/airline.nix
+++ b/plugins/statuslines/airline.nix
@@ -43,8 +43,8 @@ in {
       };
 
       powerline = mkOption {
-        default = null;
-        type = with types; nullOr bool;
+        default = false;
+        type = types.bool;
         description = "Whether to use powerline symbols";
       };