diff --git a/tests/check-logs.sh b/tests/check-logs.sh
index 2d8de9d7ba..d1795a9948 100755
--- a/tests/check-logs.sh
+++ b/tests/check-logs.sh
@@ -26,6 +26,11 @@ function filter_out_expected_critical {
         # Sometimes we see this during upgrade when keystone is down.
         grep -v "Failed to fetch token data from identity server"
         ;;
+    */neutron-server.log)
+        # Sometimes we see this during shutdown (upgrade).
+        # See: https://bugs.launchpad.net/neutron/+bug/1863579
+        grep -v "WSREP has not yet prepared node for application use"
+        ;;
     *)
         # We have to provide some pass-through consumer to avoid:
         #   grep: write error: Broken pipe