diff --git a/llvm/support/tools/Burg/.cvsignore b/llvm/support/tools/Burg/.cvsignore
index e32ed40156ea..3babc0c71692 100644
--- a/llvm/support/tools/Burg/.cvsignore
+++ b/llvm/support/tools/Burg/.cvsignore
@@ -1 +1,3 @@
 gram.tab.?
+gram.h
+gram.output