diff --git a/substrate/wasm-runtime/target/wasm32-unknown-unknown/release/runtime_test.compact.wasm b/substrate/wasm-runtime/target/wasm32-unknown-unknown/release/runtime_test.compact.wasm
index e4431c2606..69e547cd11 100644
Binary files a/substrate/wasm-runtime/target/wasm32-unknown-unknown/release/runtime_test.compact.wasm and b/substrate/wasm-runtime/target/wasm32-unknown-unknown/release/runtime_test.compact.wasm differ
diff --git a/substrate/wasm-runtime/target/wasm32-unknown-unknown/release/runtime_test.wasm b/substrate/wasm-runtime/target/wasm32-unknown-unknown/release/runtime_test.wasm
index 501cee72e0..cbf1c77bdc 100644
Binary files a/substrate/wasm-runtime/target/wasm32-unknown-unknown/release/runtime_test.wasm and b/substrate/wasm-runtime/target/wasm32-unknown-unknown/release/runtime_test.wasm differ
diff --git a/substrate/wasm-runtime/test/src/lib.rs b/substrate/wasm-runtime/test/src/lib.rs
index 8bbba9e7a8..f6eb4c024e 100644
--- a/substrate/wasm-runtime/test/src/lib.rs
+++ b/substrate/wasm-runtime/test/src/lib.rs
@@ -18,9 +18,7 @@ fn test_ed25519_verify(input: Vec<u8>) -> Vec<u8> {
 	let sig = &input[0..64];
 	let pubkey = &input[64..96];
 	let msg = b"all ok!";
-	let mut r = Vec::new();
-	r.push(ed25519_verify(sig, &msg[..], pubkey) as u8);
-	r
+	[ed25519_verify(sig, &msg[..], pubkey) as u8].to_vec()
 }
 
 fn test_data_in(input: Vec<u8>) -> Vec<u8> {