diff --git a/src/web/generate-memory-viewer.ts b/src/web/generate-memory-viewer.ts
index a31ff12..4064c98 100644
--- a/src/web/generate-memory-viewer.ts
+++ b/src/web/generate-memory-viewer.ts
@@ -427,7 +427,7 @@ export async function generateAndOpenMemoryViewer(
   const jsonPayload = JSON.stringify(data).replace(/</g, "\\u003c");
   const html = memoryViewerTemplate.replace(
     "<!--LETTA_DATA_PLACEHOLDER-->",
-    jsonPayload,
+    () => jsonPayload,
   );
 
   // 3. Write to ~/.letta/viewers/ with owner-only permissions