diff --git a/Documentation/Books/Makefile b/Documentation/Books/Makefile
index b10d72c117..a9b0e1a655 100644
--- a/Documentation/Books/Makefile
+++ b/Documentation/Books/Makefile
@@ -8,12 +8,15 @@ MD_FILES = $(wildcard Users/*/*.md)
 md-files:
 	@for file in $(basename $(MDPP_FILES)); do echo "converting $${file}.mdpp"; markdown-pp.py $${file}.mdpp $${file}.md; done
 
+clean-md-files:
+	@for file in $(basename $(MD_FILES)); do echo "remove $${file}.md";rm $${file}.md;done
 
 .PHONY: build-books
 
 build-books: md-files
 	@test -d books || mkdir books
 	make build-book NAME=Users
+	make clean-md-files
 
 build-book:
 	@test -d books/$(NAME) || mkdir books/$(NAME)
@@ -21,4 +24,3 @@ build-book:
 	python bot.py
 	cd $(NAME) && gitbook build -o ../books/$(NAME)
 	cp Users/Arangodb_Logo.png books/Users/
-	@for file in $(basename $(MD_FILES)); do echo "remove $${file}.md";rm $${file}.md;done