diff --git a/init.c b/init.c
index eccd3af..0f99280 100644
--- a/init.c
+++ b/init.c
@@ -1708,3 +1708,8 @@
 
 	return 0;
 }
+
+void options_default_fill(struct thread_options *o)
+{
+	memcpy(o, &def_thread.o, sizeof(*o));
+}