diff --git a/Makefile b/Makefile
index 8abde7c..58d0f5b 100644
--- a/Makefile
+++ b/Makefile
@@ -4,3 +4,6 @@ build:
 pdf:
 	pelican -s pelicanconf-full.py
 
+clean:
+	rm -rf cache __pycache__
+