diff --git a/modules/lang/janet/README.org b/modules/lang/janet/README.org
index 44cfe98f5..65e09c2ea 100644
--- a/modules/lang/janet/README.org
+++ b/modules/lang/janet/README.org
@@ -12,7 +12,9 @@ This module adds rudimentary support for the [[https://janet-lang.org/][Janet pr
 [[doom-contrib-maintainer:][Become a maintainer?]]
 
 ** Module flags
-/This module has no flags./
+- +tree-sitter ::
+  Leverages tree-sitter for better syntax highlighting and structural text
+  editing. Requires [[doom-module::tools tree-sitter]].
 
 ** Packages
 - [[doom-package:janet-mode]]
diff --git a/modules/lang/janet/config.el b/modules/lang/janet/config.el
index cf26fbd66..00c4f0a42 100644
--- a/modules/lang/janet/config.el
+++ b/modules/lang/janet/config.el
@@ -24,16 +24,15 @@
     (put sym 'janet-indent-function 'defun)))
 
 
-;; (use-package! janet-ts-mode
-;;   :when (modulep! +tree-sitter)
-;;   :defer t
-;;   :init
-;;   (set-tree-sitter! 'janet-mode 'janet-ts-mode
-;;     `(janet-simple :url "https://github.com/sogaiu/tree-sitter-janet-simple"
-;;                    :cc ,(if (featurep :system 'windows) "gcc.exe")))
-;;   :config
-;;   ;; HACK: These autoloads are inserted twice by this package, so remove them so
-;;   ;;   this module can be the single source of truth.
-;;   (cl-callf2 delete '("\\.janet\\'" . janet-ts-mode) auto-mode-alist)
-;;   (cl-callf2 delete '("\\.jdn\\'" . janet-ts-mode) auto-mode-alist)
-;;   (cl-callf2 delete '("janet" . janet-ts-mode) interpreter-mode-alist))
+(use-package! janet-ts-mode
+  :when (modulep! +tree-sitter)
+  :defer t
+  :init
+  (set-tree-sitter! 'janet-mode 'janet-ts-mode
+    `(janet-simple :url "https://github.com/sogaiu/tree-sitter-janet-simple"
+                   :cc ,(if (featurep :system 'windows) "gcc.exe")))
+  :config
+  ;; HACK: These entries are inserted twice by this package, so remove them so
+  ;;   this module can be the single source of truth.
+  (cl-callf2 rassq-delete-all 'janet-ts-mode auto-mode-alist)
+  (cl-callf2 rassq-delete-all 'janet-ts-mode interpreter-mode-alist))
diff --git a/modules/lang/janet/packages.el b/modules/lang/janet/packages.el
index ba107e355..88409a9d9 100644
--- a/modules/lang/janet/packages.el
+++ b/modules/lang/janet/packages.el
@@ -5,7 +5,7 @@
   :recipe (:files ("*.el"))
   :pin "9e3254a0249d720d5fa5603f1f8c3ed0612695af")
 
-;; (when (modulep! +tree-sitter)
-;;   (package! janet-ts-mode
-;;     :recipe (:host github :repo "sogaiu/janet-ts-mode")
-;;     :pin "ac684edf57e4d4e085cf99d5ad2ee084b46b8123"))
+(when (modulep! +tree-sitter)
+  (package! janet-ts-mode
+    :recipe (:host github :repo "sogaiu/janet-ts-mode")
+    :pin "ac684edf57e4d4e085cf99d5ad2ee084b46b8123"))