diff --git a/app/modules/dump.ts b/app/modules/dump.ts
index d89ebb7475c5bb579d1ef7b587f26e85ed959653..ea01d58832e61980f7a91738a6f30c1fe0d3ed6f 100644
--- a/app/modules/dump.ts
+++ b/app/modules/dump.ts
@@ -41,6 +41,7 @@ import {
 } from "../lib/dto/CertificationDTO";
 import { MembershipDTO } from "../lib/dto/MembershipDTO";
 import { RevocationDTO, ShortRevocation } from "../lib/dto/RevocationDTO";
+import { NewLogger } from "../lib/logger";
 
 const Table = require("cli-table");
 
@@ -156,6 +157,7 @@ module.exports = {
                 break;
 
               case "wotwizard":
+                NewLogger().unmute();
                 await dumpWotWizard(server);
                 break;
 
diff --git a/app/modules/dump/wotwizard/wotwizard.dump.ts b/app/modules/dump/wotwizard/wotwizard.dump.ts
index 35ce2cf4fdef6c38767df176c9eaee8fe315750b..f6df40e4366b33e2006205be99ba49167a3b7b12 100644
--- a/app/modules/dump/wotwizard/wotwizard.dump.ts
+++ b/app/modules/dump/wotwizard/wotwizard.dump.ts
@@ -53,6 +53,6 @@ export async function dumpWotWizard(server: Server) {
       Directory.GET_FILE_PATH(WotWizardConstants.DB_NAME_0),
       Directory.GET_FILE_PATH(WotWizardConstants.DB_NAME)
     );
-    fs.writeFileSync(updatingFile, Date.now());
+    fs.writeFileSync(updatingFile, String(Date.now()));
   }
 }
diff --git a/app/modules/dump/wotwizard/wotwizard.legacy.blocks.ts b/app/modules/dump/wotwizard/wotwizard.legacy.blocks.ts
index 86025ac294165a0044643e20b188c5a362a365b7..e548b76a0327af6cffaea97f108704fe2df215f2 100644
--- a/app/modules/dump/wotwizard/wotwizard.legacy.blocks.ts
+++ b/app/modules/dump/wotwizard/wotwizard.legacy.blocks.ts
@@ -26,8 +26,12 @@ export async function addLegacyBlocks(server: Server, wwDAL: WotWizardDAL) {
       return f;
     });
     legacies.forEach((l) => blocksSaved.push(l));
-    if (i % 25000 === 0) {
-      logger.debug("Saving 25 blocks... (%s yet stored)", i);
+    if (i % CommonConstants.BLOCKS_IN_MEMORY_MAX === 0) {
+      logger.debug(
+        "Saving %s blocks... (%s yet stored)",
+        CommonConstants.BLOCKS_IN_MEMORY_MAX,
+        i
+      );
       await wwDAL.blockDao.insertBatch(blocksSaved);
       blocksSaved = [];
     }