diff --git a/lib/philomena/topics/attribution.ex b/lib/philomena/topics/attribution.ex
new file mode 100644
index 00000000..171cd3a6
--- /dev/null
+++ b/lib/philomena/topics/attribution.ex
@@ -0,0 +1,9 @@
+defimpl Philomena.Attribution, for: Philomena.Topics.Topic do
+  def object_identifier(topic) do
+    to_string(topic.id)
+  end
+
+  def best_user_identifier(topic) do
+    to_string(topic.user_id)
+  end
+end
\ No newline at end of file