1 files changed, 1 insertions, 1 deletions
diff --git a/t/spawn.t b/t/spawn.t
index fd669e22..a0019202 100644
--- a/t/spawn.t
+++ b/t/spawn.t
@@ -29,7 +29,7 @@ elsif ($pid > 0) {
          $? == 0 or die "child err: $>";
          $SIG{CHLD} = sub { print "HI\n"; exit };
          print "RDY $$\n";
-        sleep while 1;
+        select(undef, undef, undef, 0.01) while 1;
  }
  EOF
          my $oldset = PublicInbox::Sigfd::block_signals();