diff --git a/packages/tailwindcss-intellisense/src/lib/languages.ts b/packages/tailwindcss-intellisense/src/lib/languages.ts
index af134ce..e42d217 100644
--- a/packages/tailwindcss-intellisense/src/lib/languages.ts
+++ b/packages/tailwindcss-intellisense/src/lib/languages.ts
@@ -39,6 +39,7 @@ export const DEFAULT_LANGUAGES = [
   'javascript',
   'javascriptreact',
   'reason',
+  'rescript',
   'typescript',
   'typescriptreact',
   // mixed
diff --git a/packages/tailwindcss-language-service/src/util/js.ts b/packages/tailwindcss-language-service/src/util/js.ts
index ca82bcc..e96fa08 100644
--- a/packages/tailwindcss-language-service/src/util/js.ts
+++ b/packages/tailwindcss-language-service/src/util/js.ts
@@ -6,6 +6,7 @@ export const JS_LANGUAGES = [
   'javascript',
   'javascriptreact',
   'reason',
+  'rescript',
   'typescript',
   'typescriptreact',
 ]