diff --git a/doc/Makefile b/doc/Makefile
index ddef6ec..788bb80 100644
--- a/doc/Makefile
+++ b/doc/Makefile
@@ -1,4 +1,6 @@
 informe:
+	# we do this twice to make sure the toc is updated
+	pdflatex -synctex=1 -interaction=nonstopmode "Informe.tex"
 	pdflatex -synctex=1 -interaction=nonstopmode "Informe.tex"
 
 clean: