diff --git a/coffer-client/src/main.rs b/coffer-client/src/main.rs
index 309cde4..6d215bd 100644
--- a/coffer-client/src/main.rs
+++ b/coffer-client/src/main.rs
@@ -18,8 +18,8 @@ use coffer_common::coffer::{CofferShard, CofferValue};
 #[derive(StructOpt, Debug)]
 struct Args {
     /// Address of the coffer server
-    #[structopt(short, long, parse(try_from_str), env = "COFFER_SERVER_ADDRESS", default_value = "127.0.0.1:9187")]
-    server_address: SocketAddr,
+    #[structopt(short, long, env = "COFFER_SERVER_ADDRESS", default_value = "127.0.0.1:9187")]
+    server_address: String,
 
     #[structopt(short, long, parse(from_os_str), env = "COFFER_CLIENT_CERTIFICATE", hide_env_values = true)]
     certificate: PathBuf,
@@ -39,7 +39,7 @@ fn main() -> Result<(), Box<dyn Error>> {
     let cert = Certificate::new_from_cbor(&args.certificate)?;
 
     debug!{"Connecting to coffer server"}
-    let mut stream: TcpStream = TcpStream::connect(&args.server_address)?;
+    let mut stream: TcpStream = TcpStream::connect(args.server_address)?;
 
     debug!{"Sending hello"}
     let hello = framed(0x00, cert.public_key());
diff --git a/coffer-server/src/main.rs b/coffer-server/src/main.rs
index 2da71fa..2aff25f 100644
--- a/coffer-server/src/main.rs
+++ b/coffer-server/src/main.rs
@@ -7,7 +7,6 @@ use std::path::PathBuf;
 use std::fs::File;
 use std::io::{Read};
 use structopt::StructOpt;
-use std::net::SocketAddr;
 
 use coffer_common::keyring::Keyring;
 use coffer_common::coffer::Coffer;
@@ -31,8 +30,10 @@ struct Args {
     secrets: PathBuf,
 
     /// Address, the coffer server should bind to
-    #[structopt(short, long, parse(try_from_str), env = "COFFER_SERVER_ADDRESS", default_value = "127.0.0.1:9187")]
-    address: SocketAddr,
+    #[structopt(short, long, env = "COFFER_SERVER_ADDRESS", default_value = "127.0.0.1:9187")]
+    address: String, // unfortunately we have to take a opaque string here,
+                     // since we can't parse a hostname otherwise.
+                     // Parsers are not customizable yet in structopt
 }
 
 #[tokio::main]