diff --git a/support/tools/Burg/.cvsignore b/support/tools/Burg/.cvsignore
index e32ed40156e..3babc0c7169 100644
--- a/support/tools/Burg/.cvsignore
+++ b/support/tools/Burg/.cvsignore
@@ -1 +1,3 @@
 gram.tab.?
+gram.h
+gram.output