diff --git a/src/memos/memories/textual/tree_text_memory/retrieve/searcher.py b/src/memos/memories/textual/tree_text_memory/retrieve/searcher.py
index 8c30d74f3..7aa12bb60 100644
--- a/src/memos/memories/textual/tree_text_memory/retrieve/searcher.py
+++ b/src/memos/memories/textual/tree_text_memory/retrieve/searcher.py
@@ -288,6 +288,9 @@ def _parse_task(
         if parsed_goal.memories:
             query_embedding = self.embedder.embed(list({query, *parsed_goal.memories}))
 
+        if query_embedding is None:
+            query_embedding = self.embedder.embed([query])
+
         return parsed_goal, query_embedding, context, query
 
     @timed