diff --git a/doc/ARCHITECTURE.md b/doc/ARCHITECTURE.md
index 7d106e4..35da6e2 100644
--- a/doc/ARCHITECTURE.md
+++ b/doc/ARCHITECTURE.md
@@ -63,7 +63,7 @@ flowchart TB
         ACME["acme (Plan 9)"]
         ELLIE["ellie (Emacs)"]
         KDE["KDE GUI / Kate / KRunner"]
-        SH["s/sh (terminal)"]
+        SH["o (terminal CLI / tmux TUI)"]
         HTTP["curl / scripts"]
     end
     subgraph Integration["Integration Layer"]