diff --git a/docs/Makefile b/docs/Makefile
index 3cccb8e..8d03407 100644
--- a/docs/Makefile
+++ b/docs/Makefile
@@ -7,7 +7,7 @@ cleanbuild:
 	@make html
 
 clean:
-	rm -rf html source/cli
+	rm -rf html source/cli .buildinfo .doctrees
 
 html:
 	sphinx-build $(buildargs)