diff --git a/Rakefile b/Rakefile
index f484d249c..975327408 100644
--- a/Rakefile
+++ b/Rakefile
@@ -1 +1,6 @@
-require 'nanoc3/tasks'
\ No newline at end of file
+require 'nanoc3/tasks'
+require 'rake/clean'
+
+CLEAN.include('tmp/**/*')
+CLOBBER.include('output/Scratch/{en,fr,assets}')
+