diff --git a/electrum/interface.py b/electrum/interface.py
index e440c6a1c..3518759ba 100644
--- a/electrum/interface.py
+++ b/electrum/interface.py
@@ -384,13 +384,12 @@ class Interface(PrintError):
 
     async def run_fetch_blocks(self):
         header_queue = asyncio.Queue()
-        await self.session.subscribe('blockchain.headers.subscribe', [], header_queue)
+        await self.session.subscribe('blockchain.headers.subscribe', [True], header_queue)
         while True:
             item = await header_queue.get()
             raw_header = item[0]
             self.print_error(raw_header)
             print(raw_header)
-            log(raw_header)
             height = raw_header['block_height']
             header = blockchain.deserialize_header(bfh(raw_header['hex']), height)
             self.tip_header = header