diff --git a/src/Nethermind/Nethermind.Consensus.AuRa/AuRaBlockFinalizationManager.cs b/src/Nethermind/Nethermind.Consensus.AuRa/AuRaBlockFinalizationManager.cs
index 87d5e8a15959..76a37745f107 100644
--- a/src/Nethermind/Nethermind.Consensus.AuRa/AuRaBlockFinalizationManager.cs
+++ b/src/Nethermind/Nethermind.Consensus.AuRa/AuRaBlockFinalizationManager.cs
@@ -345,6 +345,7 @@ private set
         public void Dispose()
         {
             _branchProcessor.BlockProcessed -= OnBlockProcessed;
+            _branchProcessor.BlocksProcessing -= OnBlocksProcessing;
         }
 
         [DebuggerDisplay("Count = {Count}")]