diff --git a/src/dbwrapper.h b/src/dbwrapper.h
--- a/src/dbwrapper.h
+++ b/src/dbwrapper.h
@@ -311,6 +311,22 @@
         pdb->GetApproximateSizes(&range, 1, &size);
         return size;
     }
+
+    /**
+     * Compact a certain range of keys in the database.
+     */
+    template <typename K>
+    void CompactRange(const K &key_begin, const K &key_end) const {
+        CDataStream ssKey1(SER_DISK, CLIENT_VERSION),
+            ssKey2(SER_DISK, CLIENT_VERSION);
+        ssKey1.reserve(DBWRAPPER_PREALLOC_KEY_SIZE);
+        ssKey2.reserve(DBWRAPPER_PREALLOC_KEY_SIZE);
+        ssKey1 << key_begin;
+        ssKey2 << key_end;
+        leveldb::Slice slKey1(ssKey1.data(), ssKey1.size());
+        leveldb::Slice slKey2(ssKey2.data(), ssKey2.size());
+        pdb->CompactRange(&slKey1, &slKey2);
+    }
 };
 
 #endif // BITCOIN_DBWRAPPER_H
diff --git a/src/txdb.cpp b/src/txdb.cpp
--- a/src/txdb.cpp
+++ b/src/txdb.cpp
@@ -343,13 +343,14 @@
     CDBBatch batch(db);
     uiInterface.SetProgressBreakAction(StartShutdown);
     int reportDone = 0;
+    std::pair<uint8_t, uint256> key;
+    std::pair<uint8_t, uint256> prev_key = {DB_COINS, uint256()};
     while (pcursor->Valid()) {
         boost::this_thread::interruption_point();
         if (ShutdownRequested()) {
             break;
         }
 
-        std::pair<uint8_t, uint256> key;
         if (!pcursor->GetKey(key) || key.first != DB_COINS) {
             break;
         }
@@ -390,12 +391,15 @@
         if (batch.SizeEstimate() > batch_size) {
             db.WriteBatch(batch);
             batch.Clear();
+            db.CompactRange(prev_key, key);
+            prev_key = key;
         }
 
         pcursor->Next();
     }
 
     db.WriteBatch(batch);
+    db.CompactRange({DB_COINS, uint256()}, key);
     uiInterface.SetProgressBreakAction(std::function<void(void)>());
     LogPrintf("[%s].\n", ShutdownRequested() ? "CANCELLED" : "DONE");
     return !ShutdownRequested();