diff --git a/eth_portfolio/_ledgers/address.py b/eth_portfolio/_ledgers/address.py
index 436a307d..11762dff 100644
--- a/eth_portfolio/_ledgers/address.py
+++ b/eth_portfolio/_ledgers/address.py
@@ -257,7 +257,7 @@ async def sent(
         self, start_block: Optional[Block] = None, end_block: Optional[Block] = None
     ) -> AsyncIterator[T]:
         address = self.portfolio_address.address
-        async for obj in self[start_block: end_block]:
+        async for obj in self[start_block:end_block]:
             if obj.from_address == address:
                 yield obj
 
@@ -265,7 +265,7 @@ async def received(
         self, start_block: Optional[Block] = None, end_block: Optional[Block] = None
     ) -> AsyncIterator[T]:
         address = self.portfolio_address.address
-        async for obj in self[start_block: end_block]:
+        async for obj in self[start_block:end_block]:
             if obj.from_address != address:
                 yield obj