diff --git a/src/lib/languages.ts b/src/lib/languages.ts
index 777f5885f033174f1163d970cece03505d7dd0e8..3fd8f2586bb09e6ce62d21286ff3ab01366622fa 100644
--- a/src/lib/languages.ts
+++ b/src/lib/languages.ts
@@ -31,7 +31,6 @@   'postcss',
   'sass',
   'scss',
   'stylus',
-  'sugarss',
   // js
   'javascript',
   'javascriptreact',
diff --git a/src/lsp/util/css.ts b/src/lsp/util/css.ts
index 848d6bbc0e2a8b2db21a05aadd9dea355139fd45..fc5f0a61056d9e9e355f40cc7dd97c78e8ed7dec 100644
--- a/src/lsp/util/css.ts
+++ b/src/lsp/util/css.ts
@@ -9,7 +9,6 @@   'postcss',
   'sass',
   'scss',
   'stylus',
-  'sugarss',
 ]
 
 function isCssDoc(state: State, doc: TextDocument): boolean {