diff --git a/data.go b/data.go
index 3968825..118040f 100644
--- a/data.go
+++ b/data.go
@@ -227,7 +227,7 @@ func (o Options) transform() bool {
 // sign the remote URL in the request.  The HMAC key used to verify signatures is
 // provided to the imageproxy server on startup.
 //
-// See https://github.com/willnorris/imageproxy/wiki/URL-signing
+// See https://github.com/willnorris/imageproxy/blob/master/docs/url-signing.md
 // for examples of generating signatures.
 //
 // Examples