diff --git a/docs/assets/scss/_syntax.scss b/docs/assets/scss/_syntax.scss
index 83aab0f4d6..ac08f818d6 100644
--- a/docs/assets/scss/_syntax.scss
+++ b/docs/assets/scss/_syntax.scss
@@ -1,6 +1,5 @@
 .hll { background-color: #ffc; }
 .c { color: #999; }
-.err { color: #a00; background-color: #faa; }
 .k { color: #069; }
 .o { color: #555; }
 .cm { color: #999; }