diff --git a/hg2cvsci.sh b/hg2cvsci.sh
new file mode 100755
index 0000000..91e3ab5
--- /dev/null
+++ b/hg2cvsci.sh
@@ -0,0 +1,12 @@
+#!/bin/sh
+# This script does not support automatic "cvs add".
+# If new file is added by "hg add", don't forget to "cvs add" in
+# CVS working dir.
+#
+# This script should be called via incomming.hook.
+
+node=${HG_NODE:-tip}
+msg=`hg log -r $node --template '{desc}\n'`
+cd `dirname $0`
+$HG up -r $node
+cvs ci -m "$msg"