diff --git a/lib/burnex.ex b/lib/burnex.ex
index 4dccc8f..5a67fd8 100644
--- a/lib/burnex.ex
+++ b/lib/burnex.ex
@@ -56,7 +56,6 @@ defmodule Burnex do
   @doc """
   Returns the list of all blacklisted domains providers
   """
-  @spec providers() :: MapSet.t(binary())
   def providers do
     @providers
   end