diff --git a/docs/concepts/system-prompt.md b/docs/concepts/system-prompt.md
index 2a4adba532..90da232b69 100644
--- a/docs/concepts/system-prompt.md
+++ b/docs/concepts/system-prompt.md
@@ -59,7 +59,7 @@ Bootstrap files are trimmed and appended under **Project Context** so the model
 - `USER.md`
 - `HEARTBEAT.md`
 - `BOOTSTRAP.md` (only on brand-new workspaces)
-- `MEMORY.md` (when present in the workspace)
+- `MEMORY.md` or `memory.md` (when present in the workspace; both are recognized)
 
 All of these files are **injected into the context window** on every turn, which
 means they consume tokens. Keep them concise — especially `MEMORY.md`, which can