diff --git a/src/indexer/index.ts b/src/indexer/index.ts
index 01a1e4e..f18d595 100644
--- a/src/indexer/index.ts
+++ b/src/indexer/index.ts
@@ -88,9 +88,10 @@ export class RunestoneIndexer {
         blockhash = (await this._rpc.getblockhash({ height: blockheight })).result;
         storageBlockHash = await this._storage.getBlockhash(blockheight);
       }
+      reorgBlockhashesToIndex.reverse();
 
       // process blocks that are reorgs
-      for (const blockhash of reorgBlockhashesToIndex.toReversed()) {
+      for (const blockhash of reorgBlockhashesToIndex) {
         const blockResult = await this._rpc.getblock({ blockhash, verbosity: 2 });
         if (blockResult.error !== null) {
           throw blockResult.error;