diff --git a/src/leveldbwrapper.cpp b/src/leveldbwrapper.cpp
index 2a3e777c9..ace633c6a 100644
--- a/src/leveldbwrapper.cpp
+++ b/src/leveldbwrapper.cpp
@@ -95,7 +95,7 @@ bool CLevelDBWrapper::IsEmpty()
     it->SeekToFirst();
     return !(it->Valid());
 }
- 
+
 CLevelDBIterator::~CLevelDBIterator() { delete piter; }
 bool CLevelDBIterator::Valid() { return piter->Valid(); }
 void CLevelDBIterator::SeekToFirst() { piter->SeekToFirst(); }
diff --git a/src/leveldbwrapper.h b/src/leveldbwrapper.h
index daa0f78ce..e422a6e01 100644
--- a/src/leveldbwrapper.h
+++ b/src/leveldbwrapper.h
@@ -67,7 +67,12 @@ private:
     leveldb::Iterator *piter;
 
 public:
-    CLevelDBIterator(leveldb::Iterator *piterIn) : piter(piterIn) {}
+
+    /**
+     * @param[in] piterIn          The original leveldb iterator.
+     */
+    CLevelDBIterator(leveldb::Iterator *piterIn) : 
+        piter(piterIn) { };
     ~CLevelDBIterator();
 
     bool Valid();
@@ -229,7 +234,7 @@ public:
     CLevelDBIterator *NewIterator() 
     {
         return new CLevelDBIterator(pdb->NewIterator(iteroptions));
-    {
+    }
 
     /**
      * Return true if the database managed by this class contains no entries.
diff --git a/src/txdb.cpp b/src/txdb.cpp
index 29b49745c..b416b1ad3 100644
--- a/src/txdb.cpp
+++ b/src/txdb.cpp
@@ -162,7 +162,7 @@ bool CCoinsViewDB::GetStats(CCoinsStats &stats) const {
     /* It seems that there are no "const iterators" for LevelDB.  Since we
        only need read operations on it, use a const-cast to get around
        that restriction.  */
-    boost::scoped_ptr<CLevelDBWrapper> pcursor(const_cast<CLevelDBWrapper*>(&db)->NewIterator());
+    boost::scoped_ptr<CLevelDBIterator> pcursor(const_cast<CLevelDBWrapper*>(&db)->NewIterator());
     pcursor->Seek('c');
 
     CHashWriter ss(SER_GETHASH, PROTOCOL_VERSION);
@@ -249,9 +249,9 @@ bool CBlockTreeDB::ReadFlag(const std::string &name, bool &fValue) {
 
 bool CBlockTreeDB::LoadBlockIndexGuts()
 {
-    boost::scoped_ptr<leveldb::Iterator> pcursor(NewIterator());
+    boost::scoped_ptr<CLevelDBIterator> pcursor(NewIterator());
 
-    pcursor->Seek(make_pair('b', uint256(0)));
+    pcursor->Seek(make_pair('b', uint256()));
 
     // Load mapBlockIndex
     while (pcursor->Valid()) {