diff --git a/packages/tailwindcss-language-server/src/util/html.ts b/packages/tailwindcss-language-server/src/util/html.ts
index f9e687cc272e0a869167314c1863dba201ccf74d..54586413c084501a6b4207366c0da2d8150736e4 100644
--- a/packages/tailwindcss-language-server/src/util/html.ts
+++ b/packages/tailwindcss-language-server/src/util/html.ts
@@ -16,7 +16,6 @@   'jade',
   'leaf',
   'liquid',
   'markdown',
-  'mustache',
   'njk',
   'nunjucks',
   'php',
diff --git a/packages/tailwindcss-vscode/src/lib/languages.ts b/packages/tailwindcss-vscode/src/lib/languages.ts
index b20674a24fdce493e1bf4a85e2686da4c417cc73..688ff7887f5fc4e7d2f5550b046862d0c81808fe 100644
--- a/packages/tailwindcss-vscode/src/lib/languages.ts
+++ b/packages/tailwindcss-vscode/src/lib/languages.ts
@@ -16,8 +16,6 @@   'leaf',
   'liquid',
   'markdown',
 export const LANGUAGES = [
-  'erb',
-export const LANGUAGES = [
   'haml',
   'nunjucks',
   'php',