diff --git a/src/scroll-timeline-css-parser.js b/src/scroll-timeline-css-parser.js
index f1fc1ad2..ed6512a3 100644
--- a/src/scroll-timeline-css-parser.js
+++ b/src/scroll-timeline-css-parser.js
@@ -212,6 +212,10 @@ export class StyleParser {
     this.saveSourceSelectorToScrollTimeline(rule);
     this.saveSubjectSelectorToViewTimeline(rule);
 
+    if (!hasAnimationTimeline && !hasAnimationName && !hasAnimation) {
+      return;
+    }
+
     let timelineNames = [];
     let animationNames = [];
     let shouldReplacePart = false;