diff --git a/edit/lint-codemirror-helper.js b/edit/lint-codemirror-helper.js
index 7b43a0d3..835be8db 100644
--- a/edit/lint-codemirror-helper.js
+++ b/edit/lint-codemirror-helper.js
@@ -15,9 +15,9 @@
         severity,
       }).filter(Boolean),
 
-    stylelint: ({results}) =>
-      !results[0] && [] ||
-      results[0].warnings.map(({line, column: ch, text, severity}) => ({
+    stylelint({results}, cm) {
+      if (!results[0]) return [];
+      const output = results[0].warnings.map(({line, column: ch, text, severity}) => ({
         from: {line: line - 1, ch: ch - 1},
         to: {line: line - 1, ch},
         message: text
@@ -26,12 +26,18 @@
           .replace(/\s*\([^(]+\)$/, ''), // strip the rule,
         rule: text.replace(/^.*?\s*\(([^(]+)\)$/, '$1'),
         severity,
-      })),
+      }));
+      return cm.doc.mode.name !== 'stylus' ?
+        output :
+        output.filter(({message}) =>
+          !message.includes('"@css"') || !message.includes('(at-rule-no-unknown)'));
+    },
   };
 
-  function invokeHelper(code) {
+  function invokeHelper(code, options, cm) {
     const config = linterConfig.getCurrent();
+    const cook = cookResults[linterConfig.getName()];
     return linterConfig.invokeWorker({code, config})
-      .then(cookResults[linterConfig.getName()]);
+      .then(data => cook(data, cm));
   }
 })();