diff --git a/neo/Consensus/ConsensusContext.cs b/neo/Consensus/ConsensusContext.cs
index eecd7caab7..5c3c9da85c 100644
--- a/neo/Consensus/ConsensusContext.cs
+++ b/neo/Consensus/ConsensusContext.cs
@@ -232,6 +232,7 @@ public void Reset(byte viewNumber)
         {
             if (viewNumber == 0)
             {
+                Block = null;
                 Snapshot?.Dispose();
                 Snapshot = Blockchain.Singleton.GetSnapshot();
                 PrevHash = Snapshot.CurrentBlockHash;