diff --git a/nixos/modules/security/tpm2.nix b/nixos/modules/security/tpm2.nix
index f60adb24cdbe..bb947cb32a56 100644
--- a/nixos/modules/security/tpm2.nix
+++ b/nixos/modules/security/tpm2.nix
@@ -75,8 +75,8 @@ in
       package = lib.mkOption {
         description = "tpm2-pkcs11 package to use";
         type = lib.types.package;
-        default = pkgs.tpm2-pkcs11;
-        defaultText = lib.literalExpression "pkgs.tpm2-pkcs11";
+        default = if cfg.abrmd.enable then pkgs.tpm2-pkcs11.abrmd else pkgs.tpm2-pkcs11;
+        defaultText = lib.literalExpression "if config.security.tpm2.abrmd.enable then pkgs.tpm2-pkcs11.abrmd else pkgs.tpm2-pkcs11";
       };
     };