diff --git a/colossalai/autochunk/search_chunk.py b/colossalai/autochunk/search_chunk.py
index 590567045..c9e5e5172 100644
--- a/colossalai/autochunk/search_chunk.py
+++ b/colossalai/autochunk/search_chunk.py
@@ -88,7 +88,7 @@ class SearchChunk(object):
         Args:
             active_node (List): active node status for every node
             peak_node (Node): peak memory node
-            chunk_regions (List): chunk region info
+            chunk_regions (List): chunk region infos
 
         Returns:
             chunk_region_start (int)