diff --git a/entrypoint.sh b/entrypoint.sh
index db29415..165f86a 100755
--- a/entrypoint.sh
+++ b/entrypoint.sh
@@ -38,7 +38,7 @@ 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
+# 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/fullchain.pem"
@@ -51,11 +51,16 @@ if [ -f "$LETSENCRYPT_CERT" ] && [ -f "$LETSENCRYPT_KEY" ]; then
     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 "ERROR: Let's Encrypt certificates not found at:"
-    echo "  Certificate: $LETSENCRYPT_CERT"
-    echo "  Private Key: $LETSENCRYPT_KEY"
-    exit 1
+    echo "Using existing certificates"
 fi
 
 echo "Starting Prosody..."