diff --git a/guix-data-service/jobs/load-new-guix-revision.scm b/guix-data-service/jobs/load-new-guix-revision.scm
index 00b20f7..dd52c73 100644
--- a/guix-data-service/jobs/load-new-guix-revision.scm
+++ b/guix-data-service/jobs/load-new-guix-revision.scm
@@ -1528,7 +1528,7 @@
      (match-lambda
        ((system . target)
         (let loop ((wal-bytes (stat:size (stat "/var/guix/db/db.sqlite-wal"))))
-          (when (> wal-bytes (* 2048 (expt 2 20)))
+          (when (> wal-bytes (* 512 (expt 2 20)))
             (simple-format #t "debug: guix-daemon WAL is large (~A), waiting\n"
                            wal-bytes)