diff --git a/samples/discovery-client/src/main.rs b/samples/discovery-client/src/main.rs
index 7db59bc6c..f227dca98 100644
--- a/samples/discovery-client/src/main.rs
+++ b/samples/discovery-client/src/main.rs
@@ -19,7 +19,7 @@ impl Args {
 
     pub fn usage() {
         println!(r#"OPC UA Discovery client
-Usage: discovery-client --config [config] --run-demo-slave
+Usage:
   -h, --help  Show help
   --url       The url for the discovery server (default: {})"#, DEFAULT_DISCOVERY_URL);
     }
diff --git a/samples/modbus-server/src/main.rs b/samples/modbus-server/src/main.rs
index 78b46c2dc..08101069d 100644
--- a/samples/modbus-server/src/main.rs
+++ b/samples/modbus-server/src/main.rs
@@ -77,7 +77,7 @@ impl Args {
 
     pub fn usage() {
         println!(r#"MODBUS server
-Usage: modbus-server --config [config] --run-demo-slave
+Usage:
   -h, --help        Show help
   --config          Configuration file (default: {})
   --run-demo-slave  Runs a demo slave to ensure the sample has something to connect to"#, DEFAULT_CONFIG);
diff --git a/samples/mqtt-client/src/main.rs b/samples/mqtt-client/src/main.rs
index 174e1fbdb..ce7850fb0 100644
--- a/samples/mqtt-client/src/main.rs
+++ b/samples/mqtt-client/src/main.rs
@@ -32,7 +32,7 @@ impl Args {
 
     pub fn usage() {
         println!(r#"MQTT client
-Usage: discovery-client --config [config] --run-demo-slave
+Usage:
   -h, --help        Show help
   --config file     Sets the configuration file to read settings and endpoints from (default: {})
   --endpoint-id id  Sets the endpoint id from the config file to connect to
diff --git a/samples/simple-client/src/main.rs b/samples/simple-client/src/main.rs
index da29e1640..b079fef5b 100644
--- a/samples/simple-client/src/main.rs
+++ b/samples/simple-client/src/main.rs
@@ -23,7 +23,7 @@ impl Args {
 
     pub fn usage() {
         println!(r#"Simple Client
-Usage: simple-client --url [url]
+Usage:
   -h, --help   Show help
   --url [url]  Url to connect to (default: {})"#, DEFAULT_URL);
     }
diff --git a/samples/web-client/src/main.rs b/samples/web-client/src/main.rs
index 188686265..14855a16f 100644
--- a/samples/web-client/src/main.rs
+++ b/samples/web-client/src/main.rs
@@ -35,7 +35,7 @@ impl Args {
 
     pub fn usage() {
         println!(r#"Web Client
-Usage: web-client --config [config] --run-demo-slave
+Usage:
   -h, --help   Show help
   --http-port  The port number that this web server will run from (default: {})"#, DEFAULT_HTTP_PORT);
     }