diff --git a/1989/jar.1/.gitignore b/1989/jar.1/.gitignore
index a081e5850..dcddd407b 100644
--- a/1989/jar.1/.gitignore
+++ b/1989/jar.1/.gitignore
@@ -1,3 +1,4 @@
 jar.1
+jar.1.alt
 jar.1.orig
 prog.orig