diff --git a/packages/tailwindcss-language-service/src/util/languages.ts b/packages/tailwindcss-language-service/src/util/languages.ts
index 53c3593..f716559 100644
--- a/packages/tailwindcss-language-service/src/util/languages.ts
+++ b/packages/tailwindcss-language-service/src/util/languages.ts
@@ -9,6 +9,7 @@ export const htmlLanguages = [
   'erb',
   'gohtml',
   'GoHTML',
+  'gohtmltmpl',
   'haml',
   'handlebars',
   'hbs',