diff --git a/Makefile b/Makefile
index 982e043..c9e4be6 100644
--- a/Makefile
+++ b/Makefile
@@ -12,4 +12,9 @@ edited/%.markdown: original/%.markdown edit-chapter.go Makefile
 tex/%.tex: edited/%.markdown Makefile
 	pandoc -o $@ $< --top-level-division=chapter
 
+.PHONY: tex
 tex: $(tex_chapters)
+
+.PHONY: clean
+clean:
+	$(RM) $(edited_chapters) $(tex_chapters) book.pdf *.aux *.log *.out