diff --git a/data/prosody/configuration/prosody.cfg.lua b/data/prosody/configuration/prosody.cfg.lua
index 0c2eaf6..4dcd56b 100644
--- a/data/prosody/configuration/prosody.cfg.lua
+++ b/data/prosody/configuration/prosody.cfg.lua
@@ -1,7 +1,7 @@
 -- Prosody XMPP Server Configuration
 -- Domain: xmpp.guschin.info
 
-admins = { "admin@xmpp.guschin.info" }
+admins = { "admin@guschin.info", "admin@xmpp.guschin.info" }
 
 modules_enabled = {
 	-- Generally required
@@ -69,7 +69,14 @@ archive_expires_after = "never"
 -- Certificates directory (global, before VirtualHost)
 certificates = "/etc/prosody/certs"
 
--- Virtual host definition
+-- Primary virtual host (user@guschin.info)
+VirtualHost "guschin.info"
+    ssl = {
+        key = "/etc/prosody/certs/guschin.info.key";
+        certificate = "/etc/prosody/certs/guschin.info.crt";
+    }
+
+-- Secondary virtual host (user@xmpp.guschin.info)
 VirtualHost "xmpp.guschin.info"
     ssl = {
         key = "/etc/prosody/certs/xmpp.guschin.info.key";
@@ -77,6 +84,6 @@ VirtualHost "xmpp.guschin.info"
     }
 
 -- Component for MUC (Multi-User Chat)
-Component "muc.xmpp.guschin.info" "muc"
+Component "muc.guschin.info" "muc"
     modules_enabled = { "muc_mam" }
     storage = "sql"
diff --git a/docker-compose.yml b/docker-compose.yml
index c62d00b..99d02ed 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -25,6 +25,8 @@ services:
       - ./data/prosody/configuration:/etc/prosody/conf.d
       - /etc/letsencrypt/live/xmpp.guschin.info:/etc/prosody/certs/letsencrypt/live/xmpp.guschin.info:ro
       - /etc/letsencrypt/archive/xmpp.guschin.info:/etc/prosody/certs/letsencrypt/archive/xmpp.guschin.info:ro
+      - /etc/letsencrypt/live/guschin.info:/etc/prosody/certs/letsencrypt/live/guschin.info:ro
+      - /etc/letsencrypt/archive/guschin.info:/etc/prosody/certs/letsencrypt/archive/guschin.info:ro
     restart: unless-stopped
     mem_limit: 200M
     healthcheck:
diff --git a/entrypoint.sh b/entrypoint.sh
index da1a625..31e4851 100755
--- a/entrypoint.sh
+++ b/entrypoint.sh
@@ -38,30 +38,36 @@ fi
 # (directories are already created in Dockerfile with proper ownership)
 touch /var/log/prosody/prosody.log /var/log/prosody/prosody.err 2>/dev/null || true
 
-# Copy Let's Encrypt certificate to prosody certs directory if available
-CERT_PATH="/etc/prosody/certs/xmpp.guschin.info.crt"
-KEY_PATH="/etc/prosody/certs/xmpp.guschin.info.key"
-LETSENCRYPT_CERT="/etc/prosody/certs/letsencrypt/live/xmpp.guschin.info/fullchain.pem"
-LETSENCRYPT_KEY="/etc/prosody/certs/letsencrypt/live/xmpp.guschin.info/privkey.pem"
+# Copy Let's Encrypt certificates to prosody certs directory
+install_cert() {
+    local domain="$1"
+    local cert_path="/etc/prosody/certs/${domain}.crt"
+    local key_path="/etc/prosody/certs/${domain}.key"
+    local le_cert="/etc/prosody/certs/letsencrypt/live/${domain}/fullchain.pem"
+    local le_key="/etc/prosody/certs/letsencrypt/live/${domain}/privkey.pem"
 
-if [ -f "$LETSENCRYPT_CERT" ] && [ -f "$LETSENCRYPT_KEY" ]; then
-    echo "Setting up Let's Encrypt certificate..."
-    cp "$LETSENCRYPT_CERT" "$CERT_PATH"
-    cp "$LETSENCRYPT_KEY" "$KEY_PATH"
-    chmod 644 "$CERT_PATH"
-    chmod 600 "$KEY_PATH"
-    chown prosody:prosody "$CERT_PATH" "$KEY_PATH"
-    echo "Let's Encrypt certificate successfully installed"
-elif [ ! -f "$CERT_PATH" ] || [ ! -f "$KEY_PATH" ]; then
-    echo "Let's Encrypt certificate not found, generating self-signed certificate..."
-    openssl req -x509 -newkey rsa:4096 -keyout "$KEY_PATH" -out "$CERT_PATH" \
-        -days 365 -nodes -subj "/CN=xmpp.guschin.info"
-    chmod 600 "$KEY_PATH"
-    chmod 644 "$CERT_PATH"
-    chown prosody:prosody "$CERT_PATH" "$KEY_PATH"
-else
-    echo "Using existing certificates"
-fi
+    if [ -f "$le_cert" ] && [ -f "$le_key" ]; then
+        echo "Setting up Let's Encrypt certificate for ${domain}..."
+        cp "$le_cert" "$cert_path"
+        cp "$le_key" "$key_path"
+        chmod 644 "$cert_path"
+        chmod 600 "$key_path"
+        chown prosody:prosody "$cert_path" "$key_path"
+        echo "Let's Encrypt certificate for ${domain} installed"
+    elif [ ! -f "$cert_path" ] || [ ! -f "$key_path" ]; then
+        echo "Let's Encrypt certificate for ${domain} not found, generating self-signed..."
+        openssl req -x509 -newkey rsa:4096 -keyout "$key_path" -out "$cert_path" \
+            -days 365 -nodes -subj "/CN=${domain}"
+        chmod 600 "$key_path"
+        chmod 644 "$cert_path"
+        chown prosody:prosody "$cert_path" "$key_path"
+    else
+        echo "Using existing certificates for ${domain}"
+    fi
+}
+
+install_cert "xmpp.guschin.info"
+install_cert "guschin.info"
 
 echo "Starting Prosody..."