diff --git a/data/txHandler.go b/data/txHandler.go
index cd4c25c8e0..8e4a717ede 100644
--- a/data/txHandler.go
+++ b/data/txHandler.go
@@ -122,6 +122,8 @@ func reencode(stxns []transactions.SignedTxn) []byte {
 // backlogWorker is the worker go routine that process the incoming messages from the postVerificationQueue and backlogQueue channels
 // and dispatches them further.
 func (handler *TxHandler) backlogWorker() {
+	// Note: TestIncomingTxHandle and TestIncomingTxGroupHandle emulate this function.
+	// Changes to the behavior in this function should be reflected in the test.
 	defer handler.backlogWg.Done()
 	for {
 		// prioritize the postVerificationQueue