diff --git a/src/v1/05_emit_rust.dag b/src/v1/05_emit_rust.dag
index 621c7048231..12a33272f05 100644
--- a/src/v1/05_emit_rust.dag
+++ b/src/v1/05_emit_rust.dag
@@ -71,6 +71,7 @@ import v1.compiler.compiler_tests_rust { compiler_tests_source }
 import v1.compiler.coercion { coerce_primitive_type, is_copy, lookup_checkpoint }
 
 import std.types { is_container_type, is_kernel_type }
+import std.serialization { CoproductWireContract, VariantEncoding, VariantNaming }
 import v1.compiler.infer_env { TypeEnv, TypeBinding, authored_name, lookup_type_by_name, lookup_type_for }
 import v1.compiler.infer_types {
   resolved_type, normalize_access_type_node, for_each_element_type_node,
diff --git a/src/v1/stage0/src/bin/regen_stage0.rs b/src/v1/stage0/src/bin/regen_stage0.rs
index 87105690df4..d644d57775e 100644
--- a/src/v1/stage0/src/bin/regen_stage0.rs
+++ b/src/v1/stage0/src/bin/regen_stage0.rs
@@ -105,6 +105,9 @@ const GENERATED_STAGE0_FILES: &[&str] = &[
     "v1_rt.rs",
     "v1_std_core.rs",
     "v1_test_non_ascii_perf_fixture.rs",
+    "wt_a.rs",
+    "wt_b.rs",
+    "wt_common.rs",
 ];
 
 const HAND_MAINTAINED_STAGE0_FILES: &[&str] = &[