diff --git a/prune.go b/prune.go
index c127aa9..5747d4a 100644
--- a/prune.go
+++ b/prune.go
@@ -63,6 +63,7 @@ var DefaultExtensions = []string{
 	".jst",
 	".coffee",
 	".tgz",
+        ".swp",
 }
 
 // Stats for a prune.