diff --git a/Library/Homebrew/vendor/.bundle/config b/Library/Homebrew/vendor/.bundle/config
index 9b31762860..d43d1a4c41 100644
--- a/Library/Homebrew/vendor/.bundle/config
+++ b/Library/Homebrew/vendor/.bundle/config
@@ -2,3 +2,4 @@
 BUNDLE_PATH: "bundle-standalone"
 BUNDLE_DISABLE_SHARED_GEMS: "true"
 BUNDLE_BIN: "false"
+BUNDLE_CLEAN: "true"