diff --git a/shared/sx/async_eval.py b/shared/sx/async_eval.py
index b89eba9..7e8cd63 100644
--- a/shared/sx/async_eval.py
+++ b/shared/sx/async_eval.py
@@ -943,6 +943,10 @@ async def async_eval_slot_to_sx(
         return result.source
     if result is None or result is NIL:
         return ""
+    # Page helpers return SX source strings from render_to_sx() —
+    # pass through directly instead of quoting via serialize().
+    if isinstance(result, str):
+        return result
     return serialize(result)