diff --git a/libsrc/cbm/.cvsignore b/libsrc/cbm/.cvsignore
index 4b273aef6..1de83fbdb 100644
--- a/libsrc/cbm/.cvsignore
+++ b/libsrc/cbm/.cvsignore
@@ -1,2 +1,5 @@
 cbm_load.s
+cbm_open.s
+cbm_read.s
 cbm_save.s
+cbm_write.s