1 files changed, 6 insertions, 0 deletions
diff --git a/src/type.cff b/src/type.cff
index b18c5c4..1d224cc 100644
--- a/src/type.cff
+++ b/src/type.cff
@@ -93,6 +93,12 @@ struct TypeTraits {
       static id int = 0;
       *p = *ty;
       p.id = id++;
+      switch p.u {
+      case Fn *f;
+        let params = f.params;
+        f.params = (as(**const Type)xmalloc(params.#len * sizeof *Type))[0::params.#len];
+        memcpy(f.params.#ptr, params.#ptr, params.#len * sizeof *Type);
+      }
       return p;
    }
 }