diff --git a/docs/tools/bash.md b/docs/tools/bash.md
index 4bdf6aa2..85c899a0 100644
--- a/docs/tools/bash.md
+++ b/docs/tools/bash.md
@@ -11,7 +11,7 @@ invocation regardless of tool groups.
 
 ### `run(cmd, timeout_secs?, wait_seconds?, name?)`
 
-Submit a shell command for background execution (`sh -c <cmd>`).
+Submit a shell command for background execution (runs via `bash`).
 Stdout and stderr stream to `harness/bash-tasks/<id>.{out,err}`.
 When the task completes (or times out, or the process errors), the
 harness fires a wake with `from: "bash-task-<id>"` and the exit code