diff --git a/lib/sprockets/asset.rb b/lib/sprockets/asset.rb
index e3a03ee13..43fbe4012 100644
--- a/lib/sprockets/asset.rb
+++ b/lib/sprockets/asset.rb
@@ -145,7 +145,7 @@ def base64digest
 
     # Public: A "named information" URL for subresource integrity.
     def integrity
-      DigestUtils.integrity_uri(metadata[:digest])
+      DigestUtils.integrity_uri(digest)
     end
 
     # Public: Add enumerator to allow `Asset` instances to be used as Rack