diff --git a/mod/provider/s3.js b/mod/provider/s3.js
index 49e4d6a9f6..1941c80192 100644
--- a/mod/provider/s3.js
+++ b/mod/provider/s3.js
@@ -41,4 +41,4 @@ module.exports = async function s3(req, res) {
     res.setHeader('location', `${process.env.DIR}/api/sign/s3?${paramString}`)
 
     return res.status(301).send()
-}
\ No newline at end of file
+}
diff --git a/mod/sign/_sign.js b/mod/sign/_sign.js
index bded49f8cc..59d68d638d 100644
--- a/mod/sign/_sign.js
+++ b/mod/sign/_sign.js
@@ -1,9 +1,10 @@
 /**
 ## /sign
 
-The sign module provides access to different request signer methods.
+The sign API provides access to different request signer modules. Signer modules which are unavailable will export as null and won't be available from the signerModules object methods.
 
 @requires /sign/cloudinary
+@requires /sign/s3
 
 @module /sign
 */