diff --git a/pelicanconf.py b/pelicanconf.py
index 02f47ba..8e40179 100644
--- a/pelicanconf.py
+++ b/pelicanconf.py
@@ -14,7 +14,7 @@ TIMEZONE = 'Asia/Seoul'
 DEFAULT_LANG = 'en'
 DEFAULT_DATE = 'fs'
 #2020-04-15T16-49-26+0900_<title>
-FILENAME_METADATA = '(?P<title>.*)'
+FILENAME_METADATA = r'(?P<date>\d{4}-\d{2}-\d{2}).*'
 LOAD_CONTENT_CACHE = False
 #FILENAME_METADATA = '(?P<date>\d{4}-\d{2}-\d{2})-(?P<title>.*)'