diff --git a/editline/.cvsignore b/editline/.cvsignore
index 995bc1ac8f..2ad2f656a1 100755
--- a/editline/.cvsignore
+++ b/editline/.cvsignore
@@ -20,3 +20,4 @@ config.h
 common.h
 config.cache
 Makefile
+cygdef.h