diff --git a/internal/bootstrap/seed_store_test.go b/internal/bootstrap/seed_store_test.go
index ed75d92a..b9d00a7b 100644
--- a/internal/bootstrap/seed_store_test.go
+++ b/internal/bootstrap/seed_store_test.go
@@ -108,6 +108,9 @@ func (s *seedStubStore) EnsureUserProfile(_ context.Context, _ uuid.UUID, _ stri
 func (s *seedStubStore) PropagateContextFile(_ context.Context, _ uuid.UUID, _ string) (int, error) {
 	return 0, nil
 }
+func (s *seedStubStore) MigrateUserDataOnMerge(_ context.Context, _ []string, _ string) error {
+	return nil
+}
 
 // ---- Tests ----
 
diff --git a/internal/gateway/methods/agents_create_owner_test.go b/internal/gateway/methods/agents_create_owner_test.go
index ad440c61..5eb915aa 100644
--- a/internal/gateway/methods/agents_create_owner_test.go
+++ b/internal/gateway/methods/agents_create_owner_test.go
@@ -101,6 +101,9 @@ func (s *createCaptureStore) EnsureUserProfile(_ context.Context, _ uuid.UUID, _
 func (s *createCaptureStore) PropagateContextFile(_ context.Context, _ uuid.UUID, _ string) (int, error) {
 	return 0, nil
 }
+func (s *createCaptureStore) MigrateUserDataOnMerge(_ context.Context, _ []string, _ string) error {
+	return nil
+}
 
 // ---- helpers ----