diff --git a/shell/flk.sh b/shell/flk.sh
index 327f9819..99be02bb 100755
--- a/shell/flk.sh
+++ b/shell/flk.sh
@@ -1,3 +1,5 @@
+#!/usr/bin/env bash
+
 [[ -d "$DEVSHELL_ROOT" ]] ||
   {
     echo "This script must be run from devos's devshell" >&2