diff --git a/after/syntax/css/speech-1.vim b/after/syntax/css/speech-1.vim
index 7097c5b..2b4a78b 100644
--- a/after/syntax/css/speech-1.vim
+++ b/after/syntax/css/speech-1.vim
@@ -1,3 +1,3 @@
 syn keyword cssFontProp contained voice-volume voice-balance voice-rate voice-pitch voice-range voice-stress voice-duration rest rest-before rest-after
-syn keyword cssFontAttr contained young old neutral preserve moderate reduced literal-punctuation no-punctuation weak x-weak strong x-strong
+syn keyword cssFontAttr contained young old neutral preserve moderate reduced literal-punctuation no-punctuation weak x-weak strong x-strong never
 syn match cssValueNumber contained "[-+]\=\d\+\(dB\|st\)"
diff --git a/test/test.css b/test/test.css
index 6467e21..a663542 100644
--- a/test/test.css
+++ b/test/test.css
@@ -937,6 +937,7 @@ mask {
 	display: 10st;
 	display: moderate;
 	display: reduced;
+	display: never;
 }
 
 .style-attr {