diff --git a/data/thermo/.cvsignore b/data/thermo/.cvsignore
new file mode 100644
index 000000000..0b684c6dc
--- /dev/null
+++ b/data/thermo/.cvsignore
@@ -0,0 +1,3 @@
+slop98.dat
+speq06.dat
+sprons96.dat