diff --git a/rskj-core/src/main/java/org/ethereum/db/MutableRepository.java b/rskj-core/src/main/java/org/ethereum/db/MutableRepository.java
index 15a6d4e7a4..57279db7df 100644
--- a/rskj-core/src/main/java/org/ethereum/db/MutableRepository.java
+++ b/rskj-core/src/main/java/org/ethereum/db/MutableRepository.java
@@ -25,22 +25,28 @@
 import co.rsk.crypto.Keccak256;
 import co.rsk.db.MutableTrieCache;
 import co.rsk.db.MutableTrieImpl;
-import co.rsk.trie.*;
+import co.rsk.trie.IterationElement;
+import co.rsk.trie.MutableTrie;
+import co.rsk.trie.Trie;
+import co.rsk.trie.TrieKeySlice;
+import co.rsk.trie.TrieStore;
 import com.google.common.annotations.VisibleForTesting;
 import org.ethereum.core.AccountState;
 import org.ethereum.core.Repository;
 import org.ethereum.crypto.HashUtil;
 import org.ethereum.crypto.Keccak256Helper;
-import org.ethereum.datasource.HashMapDB;
 import org.ethereum.vm.DataWord;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 import javax.annotation.Nonnull;
 import java.math.BigInteger;
-import java.util.*;
+import java.util.HashSet;
+import java.util.Iterator;
+import java.util.Optional;
+import java.util.Set;
 
-public class MutableRepository implements Repository, TransientStorageRepository {
+public class MutableRepository implements Repository {
     private static final Logger logger = LoggerFactory.getLogger("repository");
     private static final byte[] EMPTY_BYTE_ARRAY = new byte[0];
     public static final Keccak256 KECCAK_256_OF_EMPTY_ARRAY = new Keccak256(Keccak256Helper.keccak256(EMPTY_BYTE_ARRAY));
@@ -49,7 +55,6 @@ public class MutableRepository implements Repository, TransientStorageRepository
     private final TrieKeyMapper trieKeyMapper;
     private final MutableTrie mutableTrie;
     private final IReadWrittenKeysTracker tracker;
-    private Repository transientRepository;
 
     public MutableRepository(TrieStore trieStore, Trie trie) {
         this(new MutableTrieImpl(trieStore, trie));
@@ -408,22 +413,4 @@ private Optional<Keccak256> internalGetValueHash(byte[] key) {
         tracker.addNewReadKey(new ByteArrayWrapper(key));
         return mutableTrie.getValueHash(key);
     }
-
-    @Override
-    public Repository getTransientRepository() {
-        if(transientRepository == null) {
-            transientRepository = getMutableRepository();
-        }
-
-        return transientRepository;
-    }
-
-    @Override
-    public synchronized void clearTransientRepository() {
-        transientRepository =  getMutableRepository();
-    }
-
-    private static MutableRepository getMutableRepository() {
-        return new MutableRepository(new MutableTrieImpl(new TrieStoreImpl(new HashMapDB()), new Trie()));
-    }
 }
diff --git a/rskj-core/src/main/java/org/ethereum/db/TransientStorageRepository.java b/rskj-core/src/main/java/org/ethereum/db/TransientStorageRepositoryCreator.java
similarity index 67%
rename from rskj-core/src/main/java/org/ethereum/db/TransientStorageRepository.java
rename to rskj-core/src/main/java/org/ethereum/db/TransientStorageRepositoryCreator.java
index 7c480ce9ac..c03541fbe6 100644
--- a/rskj-core/src/main/java/org/ethereum/db/TransientStorageRepository.java
+++ b/rskj-core/src/main/java/org/ethereum/db/TransientStorageRepositoryCreator.java
@@ -19,16 +19,18 @@
 
 package org.ethereum.db;
 
+import co.rsk.db.MutableTrieImpl;
+import co.rsk.trie.Trie;
+import co.rsk.trie.TrieStoreImpl;
 import org.ethereum.core.Repository;
+import org.ethereum.datasource.HashMapDB;
 
-public interface TransientStorageRepository {
-    /**
-     * Returns the transientRepository initializing a new one if the current one is null
-     */
-    Repository getTransientRepository();
+public class TransientStorageRepositoryCreator {
 
-    /**
-     *  Delete all the data for this repository
-     */
-    void clearTransientRepository();
+    private TransientStorageRepositoryCreator() {
+    }
+
+    public static Repository createNewTransientStorage() {
+        return new MutableRepository(new MutableTrieImpl(new TrieStoreImpl(new HashMapDB()), new Trie()));
+    }
 }
diff --git a/rskj-core/src/main/java/org/ethereum/vm/program/Program.java b/rskj-core/src/main/java/org/ethereum/vm/program/Program.java
index 541b5bcd16..73043c7a64 100644
--- a/rskj-core/src/main/java/org/ethereum/vm/program/Program.java
+++ b/rskj-core/src/main/java/org/ethereum/vm/program/Program.java
@@ -29,8 +29,6 @@
 import co.rsk.rpc.modules.trace.CallType;
 import co.rsk.rpc.modules.trace.CreationData;
 import co.rsk.rpc.modules.trace.ProgramSubtrace;
-import co.rsk.trie.Trie;
-import co.rsk.trie.TrieStoreImpl;
 import co.rsk.vm.BitSet;
 import com.google.common.annotations.VisibleForTesting;
 import org.ethereum.config.Constants;
@@ -42,8 +40,7 @@
 import org.ethereum.core.SignatureCache;
 import org.ethereum.core.Transaction;
 import org.ethereum.crypto.HashUtil;
-import org.ethereum.datasource.HashMapDB;
-import org.ethereum.db.MutableRepository;
+import org.ethereum.db.TransientStorageRepositoryCreator;
 import org.ethereum.util.ByteUtil;
 import org.ethereum.util.FastByteComparisons;
 import org.ethereum.vm.DataWord;
@@ -120,7 +117,7 @@ public class Program {
     private final Stack stack;
     private final Memory memory;
     private final Storage storage;
-    private final Map<RskAddress, MutableRepository> transientStorages;
+    private final Map<RskAddress, Repository> transientStorages;
     private byte[] returnDataBuffer;
 
     private final ProgramResult result = new ProgramResult();
@@ -460,10 +457,10 @@ public Repository getStorage() {
         return this.storage;
     }
 
-    public MutableRepository getTransientStorage(RskAddress addr) {
-        MutableRepository current = transientStorages.get(addr);
+    public Repository getTransientStorage(RskAddress addr) {
+        Repository current = transientStorages.get(addr);
         if(current == null) {
-            current = new MutableRepository(new TrieStoreImpl(new HashMapDB()), new Trie());
+            current = TransientStorageRepositoryCreator.createNewTransientStorage();
             transientStorages.put(addr, current);
         }
         return current;
@@ -1004,7 +1001,7 @@ private void storageSave(byte[] key, byte[] val) {
 
     public void transientStorageSave(DataWord key, DataWord value) {
         RskAddress addr = getOwnerRskAddress();
-        MutableRepository storage = getTransientStorage(addr);
+        Repository storage = getTransientStorage(addr);
         storage.addStorageRow(addr, key, value);
     }
 
@@ -1120,7 +1117,7 @@ public DataWord storageLoad(DataWord key) {
 
     public DataWord transientStorageLoad(DataWord key) {
         RskAddress addr = getOwnerRskAddress();
-        MutableRepository currentTransientStorage = getTransientStorage(addr);
+        Repository currentTransientStorage = getTransientStorage(addr);
 
         return currentTransientStorage.getStorageValue(addr, key);
     }