diff --git a/linter.py b/linter.py
index 3eced12..3a08570 100644
--- a/linter.py
+++ b/linter.py
@@ -29,6 +29,7 @@
     'eslint-plugin-svelte3': 'text.html',
     'eslint-plugin-vue': 'text.html.vue',
     '@typescript-eslint/parser': 'source.ts, source.tsx',
+    'tsdx': 'source.ts, source.tsx',
 }
 OPTIMISTIC_SELECTOR = ', '.join({STANDARD_SELECTOR} | set(PLUGINS.values()))