diff --git a/Cantera/matlab/cantera/.cvsignore b/Cantera/matlab/cantera/.cvsignore
index 3466e50af..0b93c478d 100644
--- a/Cantera/matlab/cantera/.cvsignore
+++ b/Cantera/matlab/cantera/.cvsignore
@@ -1,2 +1,3 @@
 buildux.m
 ctmethods.mex*
+ctbin.m