diff --git a/src/Tupfile b/src/Tupfile
index 6d74e96..fe963b8 100644
--- a/src/Tupfile
+++ b/src/Tupfile
@@ -1,3 +1,4 @@
 include_rules
 : foreach ../*.prs |> !preserves_schema_nim |> {schema}
-: libnotify_actor.nim | {schema} $(SYNDICATE_PROTOCOL) |> !nim_bin |>
+: libnotify_actor.nim | {schema} $(SYNDICATE_PROTOCOL) |> !nim_bin |> {bin}
+: {bin} |> !assert_built |>