diff --git a/src/content/docs/turnstile/troubleshooting/testing.mdx b/src/content/docs/turnstile/troubleshooting/testing.mdx
index 32e507a1005..82ad9533de6 100644
--- a/src/content/docs/turnstile/troubleshooting/testing.mdx
+++ b/src/content/docs/turnstile/troubleshooting/testing.mdx
@@ -158,4 +158,5 @@ Production secret keys will reject the dummy token. You must also use a dummy se
 | ------------ | --------------- | --------- |
 | `1x00000000000000000000AA` | `1x0000000000000000000000000000000AA` | This combination will always result in successful validation. |
 | `2x00000000000000000000AB` | `2x0000000000000000000000000000000AA` | This combination will always fail. |
-| `1x00000000000000000000AA` | `3x0000000000000000000000000000000AA` | This combination will always fail with "timeout-or-duplicate" error. |
\ No newline at end of file
+| `1x00000000000000000000AA` | `3x0000000000000000000000000000000AA` | This combination will always fail with "timeout-or-duplicate" error. |
+| `3x00000000000000000000FF` | `1x0000000000000000000000000000000AA` | This combination forces an interactive challenge. After the visitor solves it, server-side validation always succeeds. |