diff --git a/blockchain/sync/sync_mgr.go b/blockchain/sync/sync_mgr.go
index cab9b7f..ce9f51e 100644
--- a/blockchain/sync/sync_mgr.go
+++ b/blockchain/sync/sync_mgr.go
@@ -183,6 +183,7 @@ func (sm *syncManager) doInitialMempoolSync() error {
 			txsToRetrieve = txsToRetrieve[policy.MaxTransactionCountForRetrieving:]
 		} else {
 			txHashes = txsToRetrieve
+			txsToRetrieve = nil
 		}
 
 		getMempoolTxArg := wire.GetMempoolTxsArg{