diff --git a/misc/Yap.spec b/misc/Yap.spec
index d54df3a4f..400ee29f3 100644
--- a/misc/Yap.spec
+++ b/misc/Yap.spec
@@ -1,3 +1,6 @@
+%define _unpackaged_files_terminate_build 0
+%undefine __check_files
+
 Name: Yap
 Summary: Prolog Compiler
 Version: 4.5.1