diff --git a/codex-rs/protocol/src/protocol.rs b/codex-rs/protocol/src/protocol.rs
index 1928f1bee..a401cddb3 100644
--- a/codex-rs/protocol/src/protocol.rs
+++ b/codex-rs/protocol/src/protocol.rs
@@ -1988,7 +1988,7 @@ impl SessionSource {
                 agent_nickname.clone()
             }
             SessionSource::SubAgent(SubAgentSource::MemoryConsolidation) => {
-                Some("morpheus".to_string())
+                Some("Morpheus".to_string())
             }
             _ => None,
         }