diff --git a/src/ethereum_test_tools/rpc/rpc.py b/src/ethereum_test_tools/rpc/rpc.py
index 7262272413..71ba72bd48 100644
--- a/src/ethereum_test_tools/rpc/rpc.py
+++ b/src/ethereum_test_tools/rpc/rpc.py
@@ -104,8 +104,6 @@ def storage_at_keys(
         Helper to retrieve the storage values for the specified keys at a given address and block
         number.
         """
-        if isinstance(block_number, int):
-            block_number
         results: Dict = {}
         for key in keys:
             storage_value = self.get_storage_at(account, key, block_number)