diff --git a/src/komodo_defs.h b/src/komodo_defs.h
index c0a3caffd..bd516be61 100644
--- a/src/komodo_defs.h
+++ b/src/komodo_defs.h
@@ -28,7 +28,8 @@
 #define KOMODO_FIRSTFUNGIBLEID 100
 #define KOMODO_SAPLING_ACTIVATION 1544832000 // Dec 15th, 2018
 #define KOMODO_SAPLING_DEADLINE 1550188800 // Feb 15th, 2019
- 
+#define _COINBASE_MATURITY 100
+
 extern uint8_t ASSETCHAINS_TXPOW,ASSETCHAINS_PUBLIC;
 int32_t MAX_BLOCK_SIZE(int32_t height);
 
diff --git a/src/wallet/wallet.cpp b/src/wallet/wallet.cpp
index 024194695..969e0c81b 100644
--- a/src/wallet/wallet.cpp
+++ b/src/wallet/wallet.cpp
@@ -1184,6 +1184,7 @@ bool DecrementNoteWitnesses(NoteDataMap& noteDataMap, int indexHeight, int64_t n
     return true;
 }
 
+
 void CWallet::DecrementNoteWitnesses(const CBlockIndex* pindex)
 {
     LOCK(cs_wallet);
@@ -1193,10 +1194,17 @@ void CWallet::DecrementNoteWitnesses(const CBlockIndex* pindex)
         if (!::DecrementNoteWitnesses(wtxItem.second.mapSaplingNoteData, pindex->GetHeight(), nWitnessCacheSize))
             needsRescan = true;
     }
-    nWitnessCacheSize -= 1;
-    // TODO: If nWitnessCache is zero, we need to regenerate the caches (#1302)
-    assert(nWitnessCacheSize > 0);
-
+    if ( WITNESS_CACHE_SIZE == _COINBASE_MATURITY+10 )
+    {
+        nWitnessCacheSize -= 1;
+        // TODO: If nWitnessCache is zero, we need to regenerate the caches (#1302)
+        assert(nWitnessCacheSize > 0);
+    }
+    else
+    {
+        if ( nWitnessCacheSize > 0 )
+            nWitnessCacheSize--
+            }
     // For performance reasons, we write out the witness cache in
     // CWallet::SetBestChain() (which also ensures that overall consistency
     // of the wallet.dat is maintained).