diff --git a/evm/src/cpu/kernel/aggregator.rs b/evm/src/cpu/kernel/aggregator.rs
index a0516307..65cfbe28 100644
--- a/evm/src/cpu/kernel/aggregator.rs
+++ b/evm/src/cpu/kernel/aggregator.rs
@@ -76,9 +76,14 @@ pub(crate) fn combined_kernel() -> Kernel {
 #[cfg(test)]
 mod tests {
     use env_logger::{try_init_from_env, Env, DEFAULT_FILTER_ENV};
-    use log::debug;
+    use std::str::FromStr;
 
-    use crate::cpu::kernel::aggregator::combined_kernel;
+    use anyhow::Result;
+    use ethereum_types::U256;
+    use log::debug;
+    use rand::thread_rng;
+
+    use crate::cpu::kernel::{aggregator::combined_kernel, interpreter::run};
 
     #[test]
     fn make_kernel() {