diff --git a/Makefile b/Makefile
index c62377f54cf575d44eee20d3dd72a8d7761049b5..eac0719a577e8801f3d5cc73192b77fc540df87e 100755
--- a/Makefile
+++ b/Makefile
@@ -419,7 +419,9 @@ define functionCommonPreinstall
 # Proverif
 	mkdir -p $(1)/TTool/proverif
 	cp $(TTOOL_DOC)/README_proverif $(1)/TTool/proverif
-
+#Graphs
+	mkdir -p $(1)/TTool/graphs
+	cp $(TTOOL_DOC)/README_graph $(1)/TTool/graphs
 # Figure
 	mkdir -p $(1)/TTool/figure
 	cp $(TTOOL_DOC)/README_figure $(1)/TTool/figure