diff --git a/ethcore/src/blockchain/helpers/generators.rs b/ethcore/src/blockchain/helpers/generators.rs
index a20b0cf79..2fd517e50 100644
--- a/ethcore/src/blockchain/helpers/generators.rs
+++ b/ethcore/src/blockchain/helpers/generators.rs
@@ -16,7 +16,7 @@
 
 use util::rlp::*;
 use util::hash::{H256, H2048};
-use util::uint::{U256};
+use util::numbers::{U256};
 use util::bytes::Bytes;
 use header::{BlockNumber, Header};
 use transaction::SignedTransaction;