diff --git a/pelicanconf.py b/pelicanconf.py
index 5f37360..3679276 100644
--- a/pelicanconf.py
+++ b/pelicanconf.py
@@ -19,6 +19,7 @@ DEFAULT_DATE = 'fs'
 WITH_FUTURE_DATES = True
 LOAD_CONTENT_CACHE = False
 CACHE_CONTENT = False
+DELETE_OUTPUT_DIRECTORY = True
 
 USE_FOLDER_AS_CATEGORY = True
 DEFAULT_PAGINATION = False