diff --git a/src/memos/memories/textual/tree_text_memory/organize/manager.py b/src/memos/memories/textual/tree_text_memory/organize/manager.py
index 47cbf4ed1..01ccc382b 100644
--- a/src/memos/memories/textual/tree_text_memory/organize/manager.py
+++ b/src/memos/memories/textual/tree_text_memory/organize/manager.py
@@ -351,9 +351,10 @@ def _cleanup_memories_if_needed(self, user_name: str | None = None) -> None:
         """
         cleanup_threshold = 0.8  # Clean up when 80% full
 
+        logger.info(f"self.memory_size: {self.memory_size}")
         for memory_type, limit in self.memory_size.items():
             current_count = self.current_memory_size.get(memory_type, 0)
-            threshold = int(limit * cleanup_threshold)
+            threshold = int(int(limit) * cleanup_threshold)
 
             # Only clean up if we're at or above the threshold
             if current_count >= threshold: