diff --git a/_config b/_config
index b80f532..e58e459 100644
--- a/_config
+++ b/_config
@@ -3815,6 +3815,18 @@ Substitute: gcc6-c++-32bit
 Substitute: gcc-c++-32bit
 %endif
 
+# Reproducible builds
+%if "%{sub %_project 1 9}" == "openSUSE:" || "%{sub %_project 1 5}" == "SUSE:"
+Macros:
+%source_date_epoch_from_changelog Y
+:Macros
+%endif
+Macros:
+%set_mtime_to_source_date_epoch Y
+%use_source_date_epoch_as_buildtime Y
+%_buildhost reproducible
+:Macros
+
 Macros:
 %suse_version 1600
 %workbench_version 0100
@@ -3838,10 +3850,6 @@ Macros:
 %opensuse_bs 1
 %_vendor suse
 
-# Reproducible builds
-%source_date_epoch_from_changelog Y
-# clamp_mtime_to_source_date_epoch Y
-
 # define which postgres is default
 %postgresql_default_ver 15