diff --git a/.gitignore b/.gitignore
index b0cd4fa2be9bb060005fbeaa98a91202a492c89f..998073282c96e2330b61b8b91481f714690cb4cb 100644
--- a/.gitignore
+++ b/.gitignore
@@ -16,6 +16,7 @@ tags
 *.old
 *.old2
 *.old3
+*.old3b
 *.old4
 *.old5
 *.bak