diff --git a/Makefile b/Makefile
index fad4f95..6964508 100644
--- a/Makefile
+++ b/Makefile
@@ -17,6 +17,7 @@ built/%.png: %.dot
 
 built/%.pdf: %.tex
 	cd built/; pdflatex ../$<
+	cd built/; pdflatex ../$<
 	rm built/*.aux
 	rm built/*.log
 	rm built/*.out