diff --git a/ethcore/src/engines/tendermint/mod.rs b/ethcore/src/engines/tendermint/mod.rs
index 2a9925e89..bb6d54ca5 100644
--- a/ethcore/src/engines/tendermint/mod.rs
+++ b/ethcore/src/engines/tendermint/mod.rs
@@ -661,7 +661,7 @@ mod tests {
 	use block::*;
 	use error::{Error, BlockError};
 	use header::Header;
-	use io::{IoService, IoChannel};
+	use io::IoChannel;
 	use env_info::EnvInfo;
 	use tests::helpers::*;
 	use account_provider::AccountProvider;