diff --git a/package.json b/package.json
index 5cd3834..cb811e9 100644
--- a/package.json
+++ b/package.json
@@ -48,6 +48,7 @@
         "ShellScript",
         "Bash",
         "OCaml",
+        "Apertium",
         "Lua",
         "D",
     ],
@@ -64,6 +65,7 @@
         "onLanguage:ruby",
         "onLanguage:shellscript",
         "onLanguage:ocaml",
+        "onLanguage:rtx",
         "onLanguage:lua",
         "onLanguage:d"
     ],
@@ -96,6 +98,7 @@
         "tree-sitter-javascript": "^0.19.0",
         "tree-sitter-lua": "^1.6.2",
         "tree-sitter-ocaml": "^0.19.0",
+        "tree-sitter-rtx": "^1.0.0",
         "tree-sitter-php": "^0.19.0",
         "tree-sitter-python": "^0.19.0",
         "tree-sitter-ruby": "github:tree-sitter/tree-sitter-ruby#v0.19.0",
@@ -148,6 +151,7 @@
                         "ruby",
                         "shellscript",
                         "ocaml",
+                        "rtx",
                         "lua",
                         "d"
                     ]
diff --git a/scripts/build.js b/scripts/build.js
index 050f4eb..89c37f7 100644
--- a/scripts/build.js
+++ b/scripts/build.js
@@ -15,6 +15,7 @@ const langMap = {
     typescript: ["typescript", "typescript"],
     typescriptreact: ["typescript", "tsx"],
     ocaml: ["ocaml", "ocaml"],
+    rtx: ["rtx", "rtx"],
     shellscript: ["bash"]
 }