diff --git a/backend/tests/Taskdeck.Api.Tests/AutomationProposalRepositoryIntegrationTests.cs b/backend/tests/Taskdeck.Api.Tests/AutomationProposalRepositoryIntegrationTests.cs
index 80ef58986..663350afd 100644
--- a/backend/tests/Taskdeck.Api.Tests/AutomationProposalRepositoryIntegrationTests.cs
+++ b/backend/tests/Taskdeck.Api.Tests/AutomationProposalRepositoryIntegrationTests.cs
@@ -941,8 +941,15 @@ public async Task GetExpiredAsync_WithExpiresAtInTheFuture_ShouldNotReturnAsExpi
 
         var results = (await repo.GetExpiredAsync()).Expirable.ToList();
 
-        results.Should().NotContain(p => p.Id == unexpired.Id, "ExpiresAt is 30 minutes in the future");
-        results.Should().Contain(p => p.Id == expired.Id, "ExpiresAt is 30 minutes in the past");
+        // GetExpiredAsync intentionally scans the shared per-class database. Keep failure output
+        // attributable to this test without changing the repository query or hiding its result.
+        const string correlationPrefix = "corr-boundary-";
+        var ownedResults = results
+            .Where(proposal => proposal.CorrelationId.StartsWith(correlationPrefix, StringComparison.Ordinal))
+            .ToList();
+
+        ownedResults.Should().NotContain(p => p.Id == unexpired.Id, "ExpiresAt is 30 minutes in the future");
+        ownedResults.Should().Contain(p => p.Id == expired.Id, "ExpiresAt is 30 minutes in the past");
     }
 
     [Fact]