diff --git a/test/mod_http_api_test.exs b/test/mod_http_api_test.exs
index 55faea83d..9432ae471 100644
--- a/test/mod_http_api_test.exs
+++ b/test/mod_http_api_test.exs
@@ -29,7 +29,7 @@ defmodule ModHttpApiTest do
 
   setup_all do
     :ok = :mnesia.start
-    :ok = :stringprep.start
+    :stringprep.start
     :ok = :ejabberd_config.start(["localhost"], [])
 
     :ok = :ejabberd_commands.init