diff --git a/prune.go b/prune.go
index 0504cf6..584b061 100644
--- a/prune.go
+++ b/prune.go
@@ -44,6 +44,7 @@ var DefaultFiles = []string{
 	"_config.yml",
 	".babelrc",
 	".yo-rc.json",
+	"jest.config.js",
 }
 
 // DefaultDirectories pruned.