diff --git a/src/infra/outbound/channel-selection.ts b/src/infra/outbound/channel-selection.ts
index 4d53630db77..f68ecce81a4 100644
--- a/src/infra/outbound/channel-selection.ts
+++ b/src/infra/outbound/channel-selection.ts
@@ -171,9 +171,9 @@ export async function resolveMessageChannelSelection(params: {
         };
       }
       if (!isKnownChannel(normalized)) {
-        throw new Error(`Unknown channel: ${String(normalized)}`);
+        throw new Error(`Unknown channel: ${normalized}`);
       }
-      throw new Error(`Channel is unavailable: ${String(normalized)}`);
+      throw new Error(`Channel is unavailable: ${normalized}`);
     }
     return {
       channel: availableExplicit,