diff --git a/prompts/01_ollie.md b/prompts/01_ollie.md
index 3b5ae91..b574f37 100644
--- a/prompts/01_ollie.md
+++ b/prompts/01_ollie.md
@@ -52,7 +52,7 @@ Use this to discover other sessions for cooperation. Sessions sharing your `cwd`
 
 **Session lifecycle:**
 - Create: write a key=value string to `{{.OllieMountPath}}/s/new`
-- Kill: `rm -r {{.OllieMountPath}}/s/{id}`
+- Kill: write `kill` to `{{.OllieMountPath}}/s/{id}/ctl` (do not use `rm -r`)
 - Rename: `mv {{.OllieMountPath}}/s/{id} {{.OllieMountPath}}/s/{newname}` — this also updates `$OLLIE_SESSION_ID` in the session environment
 
 **`ctl` commands** (write to `{{.OllieMountPath}}/s/{id}/ctl`):