diff --git a/.dir-locals.el b/.dir-locals.el
index e645302b..a840bd6f 100644
--- a/.dir-locals.el
+++ b/.dir-locals.el
@@ -5,5 +5,6 @@
             (c-basic-offset . 4)))
  (makefile-mode . ((indent-tabs-mode . t)))
  (asm-mode . ((indent-tabs-mode . t)))
+ (shell-script-mode . ((indent-tabs-mode . t)))
  ((nil . ((truncate-lines . t)))
           (text-mode . ((eval . ((turn-on-auto-fill)))))))