diff --git a/webtools/tinderbox/.cvsignore b/webtools/tinderbox/.cvsignore
index 2f9798c5ada..fb48311678e 100644
--- a/webtools/tinderbox/.cvsignore
+++ b/webtools/tinderbox/.cvsignore
@@ -1,2 +1,4 @@
 MozillaTest
 SeaMonkey
+build.dat
+data