diff --git a/runtime/twodue/.cvsignore b/runtime/twodue/.cvsignore
index 0ac996b7..10580090 100644
--- a/runtime/twodue/.cvsignore
+++ b/runtime/twodue/.cvsignore
@@ -1 +1,2 @@
 twodue.war
+.jde-project.el