diff --git a/examples/cxx/.cvsignore b/examples/cxx/.cvsignore
index f3c4f5c17..ab36c4d0f 100644
--- a/examples/cxx/.cvsignore
+++ b/examples/cxx/.cvsignore
@@ -14,4 +14,7 @@ tr1.dat
 tr2.csv
 tr2.dat
 transport_log.xml
+.cttmp.py
+ct2ctml.log
+gri30.xml