lib/PublicInbox/DS.pm | 3 ++-

diff --git a/lib/PublicInbox/DS.pm b/lib/PublicInbox/DS.pm
index 4f1558c7c07a36c392c723fbc7c56c5a14608af8..8a560ae8b4ad53be049d051350efde8af98e0b9b 100644
--- a/lib/PublicInbox/DS.pm
+++ b/lib/PublicInbox/DS.pm
@@ -66,8 +66,9 @@ Reset all state
 
 =cut
 sub Reset {
+    $in_loop = undef; # first in case DESTROY callbacks use this
     %DescriptorMap = ();
-    $in_loop = $wait_pids = $later_queue = $reap_armed = undef;
+    $wait_pids = $later_queue = $reap_armed = undef;
     $EXPMAP = {};
     $nextq = $ToClose = $later_timer = $exp_timer = undef;
     $LoopTimeout = -1;  # no timeout by default