diff --git a/lib/licenses/helpers.nix b/lib/licenses/helpers.nix
index c64926284454..b4af85b90113 100644
--- a/lib/licenses/helpers.nix
+++ b/lib/licenses/helpers.nix
@@ -11,10 +11,7 @@ let
       else
         throw "Unknown license operator"
     else if license.licenseType == "exception" then
-      AND evaluateSubProperty [
-        license.license
-        license.exception
-      ]
+      evaluateSubProperty license.license && evaluateSubProperty license.exception
     else if license.licenseType == "plus" then
       evaluateSubProperty license.license
     else