diff --git a/backend/src/api/pools-parser.ts b/backend/src/api/pools-parser.ts
index f17df385a..f94c147a2 100644
--- a/backend/src/api/pools-parser.ts
+++ b/backend/src/api/pools-parser.ts
@@ -39,6 +39,10 @@ class PoolsParser {
    * @param pools 
    */
   public async migratePoolsJson(): Promise<void> {
+    // We also need to wipe the backend cache to make sure we don't serve blocks with
+    // the wrong mining pool (usually happen with unknown blocks)
+    diskCache.wipeCache();
+
     await this.$insertUnknownPool();
 
     for (const pool of this.miningPools) {
@@ -142,10 +146,6 @@ class PoolsParser {
       WHERE pool_id = ?`,
       [pool.id]
     );
-
-    // We also need to wipe the backend cache to make sure we don't serve blocks with
-    // the wrong mining pool (usually happen with unknown blocks)
-    diskCache.wipeCache();
   }
 
   private async $deleteUnknownBlocks(): Promise<void> {
@@ -156,10 +156,6 @@ class PoolsParser {
       WHERE pool_id = ? AND height >= 130635`,
       [unknownPool[0].id]
     );
-
-    // We also need to wipe the backend cache to make sure we don't serve blocks with
-    // the wrong mining pool (usually happen with unknown blocks)
-    diskCache.wipeCache();
   }
 }