diff --git a/.gitignore b/.gitignore
index ed8b528e..9671228f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -33,6 +33,9 @@ coverage.html
 # Vim backup files
 *.swp
 
+# Sed backup files
+*.bak
+
 # Project specific
 prog/weaver/weaver
 prog/weavedns/weavedns