diff --git a/Makefile b/Makefile
index 05b00e6..c290f85 100644
--- a/Makefile
+++ b/Makefile
@@ -12,6 +12,5 @@ paper.pdf: paper.tex images
 	pdflatex -synctex=1 -interaction=nonstopmode paper.tex
 
 clean:
-	rm -f *.toc *.aux *.bbl *.blg *.fls *.out *.log *.synctex.gz *.dot
-	rm -rf tmp
+	rm -f *.toc *.aux *.bbl *.blg *.fls *.out *.log *.synctex.gz
 	$(MAKE) -C img clean