diff --git a/ethcore/src/verification/noop_verifier.rs b/ethcore/src/verification/noop_verifier.rs
index ae2a153fe..20c15c3f1 100644
--- a/ethcore/src/verification/noop_verifier.rs
+++ b/ethcore/src/verification/noop_verifier.rs
@@ -20,6 +20,7 @@ use error::Error;
 use header::Header;
 use super::Verifier;
 
+#[allow(dead_code)]
 pub struct NoopVerifier;
 
 impl Verifier for NoopVerifier {
diff --git a/parity/main.rs b/parity/main.rs
index 3770fe04d..b16801ad5 100644
--- a/parity/main.rs
+++ b/parity/main.rs
@@ -394,6 +394,7 @@ impl Configuration {
 		}
 	}
 
+	#[cfg_attr(feature="dev", allow(useless_format))]
 	fn execute_client(&self) {
 		// Setup panic handler
 		let panic_handler = PanicHandler::new_in_arc();