diff --git a/lib/style.js b/lib/style.js
index ff8aa9864..cade07b5f 100644
--- a/lib/style.js
+++ b/lib/style.js
@@ -84,10 +84,7 @@ const parseStylesheet = (css, dynamic) => {
     }
     if (cssNode.type === 'Atrule') {
       if (
-        cssNode.name === 'keyframes' ||
-        cssNode.name === '-webkit-keyframes' ||
-        cssNode.name === '-o-keyframes' ||
-        cssNode.name === '-moz-keyframes'
+        ['keyframes', '-webkit-keyframes', '-o-keyframes', '-moz-keyframes'].includes(cssNode.name)
       ) {
         return csstreeWalkSkip;
       }