diff --git a/README.org b/README.org
index 2da350b..0c6d62f 100644
--- a/README.org
+++ b/README.org
@@ -2520,10 +2520,12 @@ When called twice, replace the previously inserted \\(\\) by one $."
 (with-eval-after-load 'emacs
   ;; Stolen from `org-insert-structure-template'.
   ;; Note: `org-tempo' does not require `tempo' at all.
-  (defcustom org-insert-source-block-defaults '("emacs-lisp -n :results silent"
-                                                "latex -n"
-                                                "org -n"
-                                                "python -i -n :results silent")
+  (defcustom org-insert-source-block-defaults
+    '("emacs-lisp -n :results silent"
+      "julia -n :results silent"
+      "latex -n"
+      "org -n"
+      "python -i -n :results silent")
     "Default values for `org-insert-source-block'."
     :group 'org)