diff --git a/.gitignore b/.gitignore
index f05ae9d..ae513f4 100644
--- a/.gitignore
+++ b/.gitignore
@@ -21,6 +21,7 @@
 install-sh
 lib/Makefile
 lib/Makefile.in
+lib/alterl/ebin
 lib/cpp/.deps
 lib/cpp/.libs
 lib/cpp/Makefile