diff --git a/ingest/cdp/producer_test.go b/ingest/cdp/producer_test.go
index 2c1b39c247..ba3c10bc9b 100644
--- a/ingest/cdp/producer_test.go
+++ b/ingest/cdp/producer_test.go
@@ -196,6 +196,8 @@ func TestBSBProducerCallerCancelsCtx(t *testing.T) {
 		BufferedStorageConfig: DefaultBufferedStorageBackendConfig(1),
 	}
 
+	pubConfig.BufferedStorageConfig.NumWorkers = 1
+
 	// the buffering runs async, test needs to stub datastore methods for potential invocation,
 	// but is race, since test also cancels the backend context which started the buffer,
 	// so, not deterministic, no assert on these.
@@ -205,15 +207,20 @@ func TestBSBProducerCallerCancelsCtx(t *testing.T) {
 		FilesPerPartition: 1,
 	})
 
-	mockDataStore.On("GetFile", mock.Anything, "FFFFFFFD--2.xdr.zstd").Return(makeSingleLCMBatch(2), nil)
+	mockDataStore.On("GetFile", mock.Anything, "FFFFFFFD--2.xdr.zstd").
+		Run(func(args mock.Arguments) {
+			cancel()
+		}).
+		Return(makeSingleLCMBatch(2), nil)
+	// this second attempt needs to be mocked, ledger buffer queues this 'next' sequence task automatically
+	// in getFromLedgerQueue after it receives "FFFFFFFD--2.xdr.zstd", the ctx is not checked then or in
+	// the async worker routine that receives the task.
 	mockDataStore.On("GetFile", mock.Anything, "FFFFFFFC--3.xdr.zstd").Return(makeSingleLCMBatch(3), nil)
 
 	appCallback := func(lcm xdr.LedgerCloseMeta) error {
 		return nil
 	}
 
-	cancel()
-
 	datastoreFactory = func(_ context.Context, _ datastore.DataStoreConfig) (datastore.DataStore, error) {
 		return mockDataStore, nil
 	}