diff --git a/src/main.rs b/src/main.rs
index b68150d..024de81 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -920,7 +920,7 @@ async fn run(cfg: &Config) -> Result<(), Box<dyn std::error::Error>> {
             Mode::Probe => "probe (read-only, no echo)",
             Mode::Verify => "verify (CoE audit, no data loop)",
             Mode::RfmBridge => "rfm-bridge (EL6695 <-> RFM <-> remote)",
-            Mode::RfmPing | Mode::RfmEcho => unreachable!(),
+            Mode::RfmPing | Mode::RfmEcho | Mode::RfmRing => unreachable!(),
         }
     );
     let start = Instant::now();