diff --git a/packages/scanner/doc/rules/hard-coded-key.md b/packages/scanner/doc/rules/hard-coded-key.md
index 7b5b24ff1a..6967de34c0 100644
--- a/packages/scanner/doc/rules/hard-coded-key.md
+++ b/packages/scanner/doc/rules/hard-coded-key.md
@@ -10,5 +10,8 @@ labels:
   - crypto.decrypt
   - crypto.set_key
   - string.unpack
-scope: root
----
\ No newline at end of file
+---
+
+Finds occurrances in which a cryptographic key is used that is not provided by a function.
+
+`string.unpack` functions are an exception, because they are only modifying, not creating, the key.