diff --git a/utils/hashtest2.c b/utils/hashtest2.c
index 47397101eb75ec64f05c27ddac08224f2a5a0722..e5b7717986f50ab2b4771e76a4cb8634e534da56 100644
--- a/utils/hashtest2.c
+++ b/utils/hashtest2.c
@@ -357,6 +357,12 @@ void ast_unregister_file_version(const char *file)
 
 }
 
+int ast_register_atexit(void (*func)(void));
+int ast_register_atexit(void (*func)(void))
+{
+	return 0;
+}
+
 void ast_log(int level, const char *file, int line, const char *function, const char *fmt, ...)
 {
 	va_list vars;