diff --git a/lib/dns/tests/testdata/master/.cvsignore b/lib/dns/tests/testdata/master/.cvsignore
new file mode 100644
index 0000000000..384d54f7a2
--- /dev/null
+++ b/lib/dns/tests/testdata/master/.cvsignore
@@ -0,0 +1,3 @@
+master12.data
+master13.data
+master14.data