diff --git a/src/runtime2/stdlib/internet.rs b/src/runtime2/stdlib/internet.rs
index 88605e5d9808734a936ecfeb38b77f2e79f46ffa..f1e52354ea015e4d79ed598efb5178670b2a088d 100644
--- a/src/runtime2/stdlib/internet.rs
+++ b/src/runtime2/stdlib/internet.rs
@@ -154,6 +154,12 @@ impl Drop for SocketTcpListener {
     }
 }
 
+impl AsFileDescriptor for SocketTcpListener {
+    fn as_file_descriptor(&self) -> FileDescriptor {
+        return self.socket_handle;
+    }
+}
+
 /// Raw socket receiver. Essentially a listener that accepts a single connection
 struct SocketRawRx {
     listen_handle: c_int,