diff --git a/lib/source/polkadotV0-source.js b/lib/source/polkadotV0-source.js
index e2cb80d735..0215056a66 100644
--- a/lib/source/polkadotV0-source.js
+++ b/lib/source/polkadotV0-source.js
@@ -24,7 +24,7 @@ class polkadotAPI {
     return block.block.header.number.toNumber()
   }
 
-  async getBlockByHeight(blockHeight) {
+  async getBlockByHeightV2(blockHeight) {
     const api = await this.getAPI()
 
     // heavy nesting to provide optimal parallelization here