diff --git a/coord-tui/shell/coord-hooks.sh b/coord-tui/shell/coord-hooks.sh
index bb277d7a..b30781e5 100644
--- a/coord-tui/shell/coord-hooks.sh
+++ b/coord-tui/shell/coord-hooks.sh
@@ -1,3 +1,4 @@
+# shellcheck shell=bash
 # SPDX-License-Identifier: MPL-2.0
 # Copyright (c) 2026 Jonathan D.A. Jewell (hyperpolymath) <j.d.a.jewell@open.ac.uk>
 #