diff --git a/Cantera/fortran/f77demos/.cvsignore b/Cantera/fortran/f77demos/.cvsignore
new file mode 100644
index 000000000..00864e312
--- /dev/null
+++ b/Cantera/fortran/f77demos/.cvsignore
@@ -0,0 +1,2 @@
+isentropic.dsp
+f77demos.mak