diff --git a/src/DaemonFactoryInterface.php b/src/DaemonFactoryInterface.php
index 001fd74..d022989 100644
--- a/src/DaemonFactoryInterface.php
+++ b/src/DaemonFactoryInterface.php
@@ -34,4 +34,16 @@ public function createDaemon(KernelInterface $kernel, DaemonOptions $options, in
      * @return DaemonInterface The FastCGI daemon
      */
     public function createTcpDaemon(KernelInterface $kernel, DaemonOptions $options, string $host, int $port): DaemonInterface;
+
+    /**
+     * Create a FastCGI daemon from a stream socket which is configured for
+     * accepting connections using the userland FastCGI implementation.
+     *
+     * @param KernelInterface $kernel  The kernel to use for the daemon
+     * @param DaemonOptions   $options The daemon configuration
+     * @param resource        $socket  The socket to accept connections from
+     *
+     * @return DaemonInterface The FastCGI daemon
+     */
+    public function createDaemonFromStreamSocket(KernelInterface $kernel, DaemonOptions $options, $socket): DaemonInterface;
 }
diff --git a/test/Helper/Mocker/MockDaemonFactory.php b/test/Helper/Mocker/MockDaemonFactory.php
index 3343087..f1d8a68 100644
--- a/test/Helper/Mocker/MockDaemonFactory.php
+++ b/test/Helper/Mocker/MockDaemonFactory.php
@@ -20,4 +20,9 @@ public function createTcpDaemon(KernelInterface $kernel, DaemonOptions $options,
     {
         return $this->delegateCall('createTcpDaemon', func_get_args());
     }
+
+    public function createDaemonFromStreamSocket(KernelInterface $kernel, DaemonOptions $options, $socket): DaemonInterface
+    {
+        return $this->delegateCall('createDaemonFromStreamSocket', func_get_args());
+    }
 }