diff --git a/app/helpers/posts_helper.rb b/app/helpers/posts_helper.rb
index 9704e4f1f..8668b83d2 100644
--- a/app/helpers/posts_helper.rb
+++ b/app/helpers/posts_helper.rb
@@ -61,7 +61,7 @@ module PostsHelper
 
     key = "uid"
     value = user.id
-    verifier = ActiveSupporist::MessageVerifier.new(Danbooru.config.reportbooru_key, serializer: JSON, digest: "SHA256")
+    verifier = ActiveSupport::MessageVerifier.new(Danbooru.config.reportbooru_key, serializer: JSON, digest: "SHA256")
     sig = verifier.generate("#{key},#{value}")
     render("users/common_searches", user: user, sig: sig)
   end