diff --git a/bigchaindb/tendermint/event_stream.py b/bigchaindb/tendermint/event_stream.py
index 2191924b..9a597026 100644
--- a/bigchaindb/tendermint/event_stream.py
+++ b/bigchaindb/tendermint/event_stream.py
@@ -50,7 +50,7 @@ def process_event(event_queue, event, stream_id):
         # Only push non empty blocks
         if block_txs:
             block_txs = [decode_transaction_base64(txn) for txn in block_txs]
-            new_block = {'id': str(block_id), 'transactions': block_txs}
+            new_block = {'height': block_id, 'transactions': block_txs}
             event = Event(EventTypes.BLOCK_VALID, new_block)
             event_queue.put(event)
 
diff --git a/tests/tendermint/test_event_stream.py b/tests/tendermint/test_event_stream.py
index a3f3467d..02145bbf 100644
--- a/tests/tendermint/test_event_stream.py
+++ b/tests/tendermint/test_event_stream.py
@@ -35,6 +35,8 @@ def test_process_event_new_block():
     event_queue = Queue()
     process_event(event_queue, event, 'test_stream_id')
     assert not event_queue.empty()
+    block = event_queue.get()
+    assert isinstance(block.data['height'], int)
 
 
 def test_process_event_empty_block():