diff --git a/src/sftp/node.cr b/src/sftp/node.cr
index e278bc7..c58eade 100644
--- a/src/sftp/node.cr
+++ b/src/sftp/node.cr
@@ -32,5 +32,11 @@ module SSH2::SFTP
     def closed?
       @closed || @sftp.closed?
     end
+
+    def finalize
+      return if closed?
+
+      close rescue nil
+    end
   end
 end