diff --git a/modules/sops/default.nix b/modules/sops/default.nix
index 8a68ad10..26e567cc 100644
--- a/modules/sops/default.nix
+++ b/modules/sops/default.nix
@@ -333,7 +333,7 @@ in {
             (builtins.isString secret.sopsFile && lib.hasPrefix builtins.storeDir secret.sopsFile);
           message = "'${secret.sopsFile}' is not in the Nix store. Either add it to the Nix store or set sops.validateSopsFiles to false";
         } {
-          assertion = secret.owner != "root" && secret.uid != null || secret.owner != "root" && secret.uid == null;
+          assertion = secret.owner != "root" -> secret.uid == null;
           message = "In ${secret.name} exactly one of sops.owner and sops.uid must be set";
         } {
           assertion = secret.group == "" && secret.gid != null || secret.group != "" && secret.gid == null;