diff --git a/modules/home/yubikey.nix b/modules/home/yubikey.nix
index 71a2c2c..1c82661 100644
--- a/modules/home/yubikey.nix
+++ b/modules/home/yubikey.nix
@@ -27,8 +27,8 @@ in {
           trust = "ultimate";
         }
       ];
-      scdaemonSettings = {
-        disable-ccid = !cfg.withCCID;
+      scdaemonSettings = lib.mkIf (!cfg.withCCID) {
+        disable-ccid = true;
       };
     };
     services.gpg-agent = {