--- a/layout/style/ServoKeyframesRule.cpp
+++ b/layout/style/ServoKeyframesRule.cpp
@@ -51,16 +51,18 @@ public:
 
   ServoStyleSheet* GetParentObject() final { return mStyleSheet; }
 
   ServoKeyframeRule* GetRule(uint32_t aIndex) {
     if (!mRules[aIndex]) {
       ServoKeyframeRule* rule = new ServoKeyframeRule(
         Servo_KeyframesRule_GetKeyframe(mRawRule, aIndex).Consume());
       mRules.ReplaceObjectAt(rule, aIndex);
+      rule->SetStyleSheet(mStyleSheet);
+      rule->SetParentRule(mParentRule);
     }
     return static_cast<ServoKeyframeRule*>(mRules[aIndex]);
   }
 
   ServoKeyframeRule* IndexedGetter(uint32_t aIndex, bool& aFound) final
   {
     if (aIndex >= mRules.Length()) {
       aFound = false;

--- a/layout/style/test/stylo-failures.md
+++ b/layout/style/test/stylo-failures.md
@@ -31,21 +31,18 @@ to mochitest command.
 
 * Media query support:
   * test_media_queries.html [38]
   * test_media_queries_dynamic.html [6]
   * test_media_queries_dynamic_xbl.html [2]
   * test_webkit_device_pixel_ratio.html: -webkit-device-pixel-ratio [3]
   * browser_bug453896.js [8]
 * Animation support:
-  * test_animations.html [1]
-  * test_animations_dynamic_changes.html [1]
-  * test_bug716226.html [3]
   * OMTA
-    * test_animations_omta.html: bug 1361938, bug 1361663 [85]
+    * test_animations_omta.html: bug 1361938, bug 1361663 [*]
   * SMIL Animation
     * test_restyles_in_smil_animation.html [2]
 * CSSOM support:
   * \@import bug 1352968
     * test_bug221428.html [1]
     * test_css_eof_handling.html [1]
 * test_bug397427.html: @import issue bug 1331291 and CSSOM support of @import [1]
 * console support bug 1352669