diff --git a/packages/tldraw/src/state/TldrawApp.ts b/packages/tldraw/src/state/TldrawApp.ts
index c95e495d3..ca620b6d1 100644
--- a/packages/tldraw/src/state/TldrawApp.ts
+++ b/packages/tldraw/src/state/TldrawApp.ts
@@ -1306,7 +1306,13 @@ export class TldrawApp extends StateManager<TDSnapshot> {
   updateDocument = (document: TDDocument, reason = 'updated_document'): this => {
     const prevState = this.state
 
-    const nextState = { ...prevState, document: { ...prevState.document } }
+    const nextState = {
+      ...prevState,
+      document: {
+        ...prevState.document,
+        assets: document.assets,
+      },
+    }
 
     if (!document.pages[this.currentPageId]) {
       nextState.appState = {