diff --git a/Source/core/animation/AnimatableRepeatable.cpp b/Source/core/animation/AnimatableRepeatable.cpp
index f732f1f..72a4166 100644
--- a/Source/core/animation/AnimatableRepeatable.cpp
+++ b/Source/core/animation/AnimatableRepeatable.cpp
@@ -105,6 +105,7 @@
 void AnimatableRepeatable::trace(Visitor* visitor)
 {
     visitor->trace(m_values);
+    AnimatableValue::trace(visitor);
 }
 
 } // namespace WebCore