diff --git a/tests/external.nix b/tests/external.nix
index 7c87664..ba97815 100644
--- a/tests/external.nix
+++ b/tests/external.nix
@@ -489,12 +489,10 @@ pkgs.nixosTest {
           client.fail("search Junk a >&2")
           # check that search really goes through the indexer
           server.succeed(
-              "journalctl -u dovecot2 | grep -E 'indexer-worker.* Mailbox INBOX: Indexed' >&2"
+              "journalctl -u dovecot2 | grep -E 'indexer-worker.* Mailbox INBOX: Mailbox opened because: indexing' >&2"
           )
           # check that Junk is not indexed
-          server.fail(
-              "journalctl -u dovecot2 | grep -E 'indexer-worker.* Mailbox JUNK: Indexed' >&2"
-          )
+          server.fail("journalctl -u dovecot2 | grep 'indexer-worker' | grep -i 'JUNK' >&2")
 
       with subtest("no warnings or errors"):
           server.fail("journalctl -u postfix | grep -i error >&2")