diff --git a/server/web3dbspider/metadata/factory.js b/server/web3dbspider/metadata/factory.js
index 715bbc4..229680a 100644
--- a/server/web3dbspider/metadata/factory.js
+++ b/server/web3dbspider/metadata/factory.js
@@ -241,7 +241,7 @@ function getAllTables() {
   return tables;
 }
 
-function getAirDrop(tokenId) {
+function getAirDrop(tokenId, netId, tokenType, contractAddress) {
 
 }
 
diff --git a/server/web3dbspider/services/events/HERO/transfer.js b/server/web3dbspider/services/events/HERO/transfer.js
index 9431060..2ddf8ba 100644
--- a/server/web3dbspider/services/events/HERO/transfer.js
+++ b/server/web3dbspider/services/events/HERO/transfer.js
@@ -14,7 +14,10 @@ class Transfer extends BaseEventProcess {
     const tokenId = returnValues['tokenId'];
 
     if (bcutils.isSysAddress(from)) {
-      const airDropMeta = metaFactory.getAirDrop(tokenId);
+      const airDropMeta = metaFactory.getAirDrop(tokenId,
+                                                 this.getNetId(),
+                                                 bcconst.BC_NFT_HERO,
+                                                 this.getContractAddress());
       if (airDropMeta) {
         const exists = await this.exists721Nft(tokenId, this.getContractAddress());
         if (!exists) {