diff --git a/tests/domain/runtime-interaction-system.test.ts b/tests/domain/runtime-interaction-system.test.ts
index f3d0671a..8ecc1f1a 100644
--- a/tests/domain/runtime-interaction-system.test.ts
+++ b/tests/domain/runtime-interaction-system.test.ts
@@ -58,6 +58,7 @@ function createRuntimeSceneFixture(): RuntimeSceneDefinition {
     entities: {
       playerStarts: [],
       sceneEntries: [],
+      npcs: [],
       soundEmitters: [
         {
           entityId: "entity-sound-lobby",