diff --git a/lib/pleroma/html.ex b/lib/pleroma/html.ex
index bf5daa948..b4a4742ee 100644
--- a/lib/pleroma/html.ex
+++ b/lib/pleroma/html.ex
@@ -59,6 +59,8 @@ defp generate_scrubber_signature(scrubbers) do
     end)
   end
 
+  def extract_first_external_url(_, nil), do: {:error, "No content"}
+
   def extract_first_external_url(object, content) do
     key = "URL|#{object.id}"