diff --git a/_config b/_config
index b80f532..ca152ba 100644
--- a/_config
+++ b/_config
@@ -3839,8 +3839,16 @@ Macros:
 %_vendor suse
 
 # Reproducible builds
+%if "%{sub %_project 1 9}" == "openSUSE:" || "%{sub %_project 1 5}" == "SUSE:"
+Macros:
 %source_date_epoch_from_changelog Y
-# clamp_mtime_to_source_date_epoch Y
+:Macros
+%endif
+Macros:
+%set_mtime_to_source_date_epoch Y
+%use_source_date_epoch_as_buildtime Y
+%_buildhost reproducible
+:Macros
 
 # define which postgres is default
 %postgresql_default_ver 15