diff --git a/src/symbols/tls/key.rs b/src/symbols/tls/key.rs
index 2bd440c..70a9b1b 100644
--- a/src/symbols/tls/key.rs
+++ b/src/symbols/tls/key.rs
@@ -54,6 +54,7 @@ impl<C: CommandRunner> Symbol for TlsKey<'_, C> {
         "-text".as_ref(),
       ],
     )?;
+    // FIXME check bytes
     Ok(stdout.ends_with("RSA key ok\n".as_bytes()))
   }