diff --git a/Classes/Flowpack/SimpleSearch/ContentRepositoryAdaptor/Indexer/NodeIndexer.php b/Classes/Flowpack/SimpleSearch/ContentRepositoryAdaptor/Indexer/NodeIndexer.php
index 6c373cb..1c5aabb 100644
--- a/Classes/Flowpack/SimpleSearch/ContentRepositoryAdaptor/Indexer/NodeIndexer.php
+++ b/Classes/Flowpack/SimpleSearch/ContentRepositoryAdaptor/Indexer/NodeIndexer.php
@@ -140,7 +140,7 @@ public function removeNode(Node $node) {
 	 * @return void
 	 */
 	public function flush() {
-		// no operation, just here to fullfill the interface.
+		$this->indexedNodeData = array();
 	}
 
 	/**