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-rw-r--r--lib/PublicInbox/LeiQuery.pm2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/PublicInbox/LeiQuery.pm b/lib/PublicInbox/LeiQuery.pm
index 3d0e5b14..352ee601 100644
--- a/lib/PublicInbox/LeiQuery.pm
+++ b/lib/PublicInbox/LeiQuery.pm
@@ -37,7 +37,7 @@ sub _start_query { # used by "lei q" and "lei up"
                         $lms->lms_write_prepare->lms_pause; # just create
                 }
         }
-        $l2m and $l2m->{-wq_nr_workers} = $mj //
+        $l2m and $l2m->{-wq_nr_workers} //= $mj //
                 int($nproc * 0.75 + 0.5); # keep some CPU for git
 
         # descending docid order is cheapest, MUA controls sorting order