diff --git a/testdata/dot-out/.cvsignore b/testdata/dot-out/.cvsignore
new file mode 100644
index 0000000..ce8473f
--- /dev/null
+++ b/testdata/dot-out/.cvsignore
@@ -0,0 +1,19 @@
+Abstr.dot
+Irp.dot
+MyVector.dot
+Root.dot
+advrel.dot
+assoc.dot
+car.dot
+catalina.dot
+class-eg.dot
+classadd.dot
+color.dot
+ctor.dot
+extends.dot
+foo.dot
+general.dot
+java5.dot
+schema.dot
+strip.dot
+vis.dot