diff --git a/src/mocks/intersection-observer.ts b/src/mocks/intersection-observer.ts
index 547d240..b1849fe 100644
--- a/src/mocks/intersection-observer.ts
+++ b/src/mocks/intersection-observer.ts
@@ -168,6 +168,8 @@ export class MockedIntersectionObserver implements IntersectionObserver {
   }
 
   triggerNodes(nodeDescriptions: NodeIntersectionDescription[]) {
+    if (nodeDescriptions.length === 0) return;
+
     const nodeIndexes = nodeDescriptions.map(({ node }) =>
       findNodeIndex(this.nodes, node)
     );