diff --git a/man/fill_template b/man/fill_template
index d1df18d7..641cab81 100644
--- a/man/fill_template
+++ b/man/fill_template
@@ -1,6 +1,6 @@
 #!/bin/sh
 d=""
-[ -z "$SOURCE_DATE_EPOCH" ] || d=--date=@$SOURCE_DATE_EPOCH
+[ -z "$SOURCE_DATE_EPOCH" ] || d="--utc --date=@$SOURCE_DATE_EPOCH"
 
 if [ "$2" == "True" ]; then
   for i in *.0 ; do