1 files changed, 5 insertions, 1 deletions
diff --git a/src/libexpr/attr-set.hh b/src/libexpr/attr-set.hh
index 118c7bd5d..c601d09c2 100644
--- a/src/libexpr/attr-set.hh
+++ b/src/libexpr/attr-set.hh
@@ -76,7 +76,11 @@ public:
     {
         auto a = get(name);
         if (!a)
-            throw Error("attribute '%s' missing, at %s", name, pos);
+            throw Error({
+                .hint = hintfmt("attribute '%s' missing", name),
+                .nixCode = NixCode { .errPos = pos }
+            });
+
         return *a;
     }