diff --git a/.github/workflows/deploy-manually.yml b/.github/workflows/deploy-manually.yml
index b6af1e3..2e3fd16 100644
--- a/.github/workflows/deploy-manually.yml
+++ b/.github/workflows/deploy-manually.yml
@@ -79,6 +79,8 @@ jobs:
             echo "> Extract $TAR_FILE"
             tar -xf $TAR_FILE -C ${{ env.DEPLOY_PATH }}
 
+            cd .bp/
+
             echo "Stop bp process"
             pm2 delete bp || true
 
diff --git a/bp-cli/src/commands/generate.rs b/bp-cli/src/commands/generate.rs
index 113fa8b..3cfa261 100644
--- a/bp-cli/src/commands/generate.rs
+++ b/bp-cli/src/commands/generate.rs
@@ -32,7 +32,7 @@ async fn handle(opts: GenerateOptions) -> Result<()> {
         client_opts.server_bind = Some("__some_where__:3000".parse().unwrap());
 
         client_opts.bind = "0.0.0.0:3000".parse().unwrap();
-        server_opts.key = "__some_key__".to_string();
+        server_opts.key = Some("__some_key__".to_string());
 
         let content = match ext {
             "yml" | "yaml" => match opts.config_type {
diff --git a/bp-core/src/options/common.rs b/bp-core/src/options/common.rs
index 59e1883..ea92e0a 100644
--- a/bp-core/src/options/common.rs
+++ b/bp-core/src/options/common.rs
@@ -70,7 +70,7 @@ impl Options {
     pub fn key(&self) -> String {
         match self {
             Self::Client(opts) => opts.key.clone().unwrap(),
-            Self::Server(opts) => opts.key.clone(),
+            Self::Server(opts) => opts.key.clone().unwrap(),
         }
     }
 
diff --git a/bp-core/src/options/server.rs b/bp-core/src/options/server.rs
index 05d1111..a80cdf3 100644
--- a/bp-core/src/options/server.rs
+++ b/bp-core/src/options/server.rs
@@ -14,9 +14,9 @@ pub struct ServerOptions {
     #[clap(short, long, default_value = DEFAULT_SERVICE_ADDRESS)]
     pub bind: Address,
 
-    /// Symmetric encryption key, required
+    /// Symmetric encryption key
     #[clap(short, long)]
-    pub key: String,
+    pub key: Option<String>,
 
     /// Data encryption method, e.g, "plain" or "erp"
     #[clap(short, long, default_value = "erp")]
diff --git a/e2e/src/run_all.rs b/e2e/src/run_all.rs
index 7cc3b01..96e23aa 100644
--- a/e2e/src/run_all.rs
+++ b/e2e/src/run_all.rs
@@ -24,7 +24,7 @@ pub async fn run_all(
 
     let server = run_bp(
         Options::Server(ServerOptions {
-            key: key.clone().unwrap(),
+            key: key.clone(),
             ..server_opts_patch
         }),
         host,
diff --git a/e2e/tests/udp_relay.rs b/e2e/tests/udp_relay.rs
index 7079d87..d6f91a5 100644
--- a/e2e/tests/udp_relay.rs
+++ b/e2e/tests/udp_relay.rs
@@ -24,7 +24,7 @@ async fn test_udp_over_tcp() {
 
 async fn run_test(udp_over_tcp: bool) {
     let server_opts = Options::Server(ServerOptions {
-        key: "key".to_string(),
+        key: Some("key".to_string()),
         ..Default::default()
     });
 
diff --git a/usage/bp-server.txt b/usage/bp-server.txt
index bc0913c..f6f3729 100644
--- a/usage/bp-server.txt
+++ b/usage/bp-server.txt
@@ -2,7 +2,7 @@ bp-server
 Run bp server
 
 USAGE:
-    bp server [OPTIONS] --key <KEY>
+    bp server [OPTIONS]
 
 OPTIONS:
     -b, --bind <BIND>                Local service bind address [default: 127.0.0.1:1080]
@@ -10,7 +10,7 @@ OPTIONS:
         --dns-server <DNS_SERVER>    DNS server address [default: 8.8.8.8:53]
     -e, --encryption <ENCRYPTION>    Data encryption method, e.g, "plain" or "erp" [default: erp]
     -h, --help                       Print help information
-    -k, --key <KEY>                  Symmetric encryption key, required
+    -k, --key <KEY>                  Symmetric encryption key
         --quic                       Enable QUIC for Transport Layer, [default: false]
         --tls                        Enable TLS for Transport Layer, [default: false]
         --tls-cert <TLS_CERT>        Certificate file for QUIC or TLS, [default: <empty>]