diff --git a/smoketest/src/constants.rs b/smoketest/src/constants.rs
index 417ce05f80..091881009e 100644
--- a/smoketest/src/constants.rs
+++ b/smoketest/src/constants.rs
@@ -140,7 +140,8 @@ lazy_static! {
 	pub static ref GATEWAY_PROXY_CONTRACT: [u8; 20] = {
 		if let Ok(val) = env::var("GATEWAY_PROXY_CONTRACT") {
 				println!("{}", env::var("GATEWAY_PROXY_CONTRACT").unwrap());
-				<[u8; 20]>::from_hex(val).unwrap()
+			    let stripped_address = var.strip_prefix("0x").unwrap_or(&var);
+				<[u8; 20]>::from_hex(stripped_address).unwrap()
 		}
 		else {
 			DEFAULT_GATEWAY_PROXY_CONTRACT