diff --git a/clone_for_markdown.py b/clone_for_markdown.py
index f5a5fd9..9904600 100644
--- a/clone_for_markdown.py
+++ b/clone_for_markdown.py
@@ -36,6 +36,7 @@ if(len(repo_path)<2):
 repo_name = "/".join([CACHE_FOLDER_PATH,repo_path[2]])
 repo_path = "/".join(repo_path[:3])
 repo_path = PATH_PREFIX + repo_path
+repo_path = repo_path.lower()
 
 if not os.path.isdir(CACHE_FOLDER_PATH):
     os.makedirs(CACHE_FOLDER_PATH)