diff --git a/.dir-locals.el b/.dir-locals.el
index a331bde0f1..b8b0fec4ca 100644
--- a/.dir-locals.el
+++ b/.dir-locals.el
@@ -72,6 +72,9 @@
    (eval . (put 'substitute* 'scheme-indent-function 1))
    (eval . (put 'match-record 'scheme-indent-function 2))
 
+   ;; TODO: Contribute these to Emacs' scheme-mode.
+   (eval . (put 'let-keywords 'scheme-indent-function 3))
+
    ;; 'modify-inputs' and its keywords.
    (eval . (put 'modify-inputs 'scheme-indent-function 1))
    (eval . (put 'replace 'scheme-indent-function 1))