diff --git a/oni/packages/emacs.scm b/oni/packages/emacs.scm
index d2d6028..3d0e3be 100644
--- a/oni/packages/emacs.scm
+++ b/oni/packages/emacs.scm
@@ -11,6 +11,8 @@
   #:use-module ((gnu packages mail)
                 #:select (notmuch))
   #:use-module (gnu packages ruby)
+  #:use-module ((gnu packages tree-sitter)
+                #:select (tree-sitter-php))
   #:use-module (rosenthal packages tree-sitter))
 
 (define-public emacs-ace-link-notmuch
@@ -663,3 +665,26 @@ new-theme for a while. I couldn't think of a name so I named it after him.")
       (synopsis "Add TODO, FIXME, etc highlighting in comments and strings.")
       (description "Add TODO, FIXME, etc highlighting in comments and strings.")
       (license license:gpl3+))))
+
+(define-public emacs-php-ts-mode
+  (let ((commit "4e266dc4462b836b90437dc7a4d3c8f4dac89c4a")
+        (revision "0"))
+    (package
+      (name "emacs-php-ts-mode")
+      (version (git-version "0.0.0" revision commit))
+      (source
+       (origin
+         (uri (git-reference
+               (url "https://github.com/emacs-php/php-ts-mode")
+               (commit commit)))
+         (method git-fetch)
+         (file-name (git-file-name name version))
+         (sha256
+          (base32 "1w96db9mljp67a1jjqxaw30xa2iyr94f9981q52byd42wqislhja"))))
+      (propagated-inputs
+       (list tree-sitter-php))
+      (build-system emacs-build-system)
+      (home-page "https://github.com/emacs-php/ts-php-mode")
+      (synopsis "A Tree-sitter based major mode for editing PHP codes")
+      (description "A Tree-sitter based major mode for editing PHP codes.")
+      (license license:gpl3))))