diff --git a/lib/pleroma/web/common_api/utils.ex b/lib/pleroma/web/common_api/utils.ex
index 97172fd94..66153a105 100644
--- a/lib/pleroma/web/common_api/utils.ex
+++ b/lib/pleroma/web/common_api/utils.ex
@@ -157,7 +157,7 @@ defmodule Pleroma.Web.CommonAPI.Utils do
     end
   end
 
-  def make_poll_data(%{"poll" => _}) do
+  def make_poll_data(%{"poll" => poll}) when is_map(poll) do
     "Invalid poll"
   end