diff --git a/libebackend/e-authentication-session.c b/libebackend/e-authentication-session.c
index 75b3f77..2e0112b 100644
--- a/libebackend/e-authentication-session.c
+++ b/libebackend/e-authentication-session.c
@@ -646,6 +646,7 @@ authentication_session_execute (EAuthenticationSession *session,
 
 	g_return_if_fail (E_IS_AUTHENTICATION_SESSION (session));
 
+	g_printerr ("%s: '%s' on default context:%d\n", __FUNCTION__, e_authentication_session_get_source_uid (session), g_main_context_get_thread_default () == NULL || g_main_context_get_thread_default () == g_main_context_default ());
 	async_context = g_slice_new0 (AsyncContext);
 
 	simple = g_simple_async_result_new (
