diff --git a/src/app/App.tsx b/src/app/App.tsx
index c3bc40ba..68567a86 100644
--- a/src/app/App.tsx
+++ b/src/app/App.tsx
@@ -6179,6 +6179,7 @@ export function App({ store, initialStatusMessage }: AppProps) {
   const applyNpcChange = (
     overrides: {
       modelAssetId?: string | null;
+      dialogueId?: string | null;
       colliderMode?: PlayerStartColliderMode;
     } = {}
   ) => {
@@ -6189,6 +6190,7 @@ export function App({ store, initialStatusMessage }: AppProps) {
 
     try {
       const trimmedModelAssetId = npcModelAssetIdDraft.trim();
+      const trimmedDialogueId = npcDialogueIdDraft.trim();
       const colliderMode = overrides.colliderMode ?? npcColliderModeDraft;
 
       const nextEntity = createNpcEntity({
@@ -6207,6 +6209,12 @@ export function App({ store, initialStatusMessage }: AppProps) {
             : trimmedModelAssetId.length === 0
               ? null
               : trimmedModelAssetId,
+        dialogueId:
+          overrides.dialogueId !== undefined
+            ? overrides.dialogueId
+            : trimmedDialogueId.length === 0
+              ? null
+              : trimmedDialogueId,
         collider: {
           mode: colliderMode,
           eyeHeight: readPositiveNumberDraft(