diff --git a/app/modules/crawler/lib/sync/v2/GlobalIndexStream.ts b/app/modules/crawler/lib/sync/v2/GlobalIndexStream.ts
index df7aa5b1d2f7039aec4059dea34b7240bbc7fdf4..b4c222601ac1f293f6e980ab79bd8340bf9386c8 100644
--- a/app/modules/crawler/lib/sync/v2/GlobalIndexStream.ts
+++ b/app/modules/crawler/lib/sync/v2/GlobalIndexStream.ts
@@ -149,7 +149,14 @@ export class GlobalIndexStream extends Duplex {
         return callback(null);
       }
 
+      // Index blocks chunk
       await this.transform(dataArray);
+
+      // Save wot file
+      if (!this.memoryOnly) {
+        this.wotbMem.writeInFile(this.wotbFilePath);
+      }
+
       this.watcher.appliedPercent(
         Math.round(
           (dataArray[0].block.number /