diff --git a/gateway/src/impls/eth.rs b/gateway/src/impls/eth.rs
index 08fad6f2a..94e301e1e 100644
--- a/gateway/src/impls/eth.rs
+++ b/gateway/src/impls/eth.rs
@@ -587,7 +587,8 @@ impl Eth for EthClient {
                 .map_err(execution_error)
                 .then(move |result| {
                     drop(timer);
-                    info!("send_raw_transaction time: {:?}", start.elapsed());
+                    let elapsed = start.elapsed();
+                    info!(self.logger, "send_raw_transaction"; "time" => ?elapsed);
                     result
                 }),
         )
diff --git a/gateway/src/impls/oasis.rs b/gateway/src/impls/oasis.rs
index 848abb0c8..a919ac350 100644
--- a/gateway/src/impls/oasis.rs
+++ b/gateway/src/impls/oasis.rs
@@ -134,7 +134,8 @@ impl Oasis for OasisClient {
                 .map_err(execution_error)
                 .then(move |maybe_result| {
                     drop(timer);
-                    info!("invoke time: {:?}", start.elapsed());
+                    let elapsed = start.elapsed();
+                    info!(self.logger, "invoke"; "time" => ?elapsed);
 
                     maybe_result.map(|(hash, result)| RpcExecutionPayload {
                         transaction_hash: hash.into(),