diff --git a/lib/que/sql.rb b/lib/que/sql.rb
index 9111b5c1..0327ea1b 100644
--- a/lib/que/sql.rb
+++ b/lib/que/sql.rb
@@ -60,7 +60,7 @@ module Que
       INSERT INTO que_jobs
       (queue, priority, run_at, job_class, args)
       VALUES
-      (coalesce($1, '')::text, coalesce($2, 100)::smallint, coalesce($3, 'now')::timestamptz, $4::text, coalesce($5, '[]')::json)
+      (coalesce($1, '')::text, coalesce($2, 100)::smallint, coalesce($3, now())::timestamptz, $4::text, coalesce($5, '[]')::json)
       RETURNING *
     }.freeze,