diff --git a/src/main/java/icu/samnyan/aqua/sega/aimedb/handler/Impl/Lookup2Handler.java b/src/main/java/icu/samnyan/aqua/sega/aimedb/handler/Impl/Lookup2Handler.java
index 629f4396..1bd21497 100644
--- a/src/main/java/icu/samnyan/aqua/sega/aimedb/handler/Impl/Lookup2Handler.java
+++ b/src/main/java/icu/samnyan/aqua/sega/aimedb/handler/Impl/Lookup2Handler.java
@@ -48,7 +48,7 @@ public class Lookup2Handler implements BaseHandler {
         long aimeId = -1;
         Optional<Card> card = cardRepository.findByLuid((String) requestMap.get("luid"));
         if (card.isPresent()) {
-            aimeId = card.get().getExtId();
+            aimeId = card.get().getExtId().longValue();
         }
 
         Map<String, Object> resultMap = new HashMap<>();
diff --git a/src/main/java/icu/samnyan/aqua/sega/aimedb/handler/Impl/LookupHandler.java b/src/main/java/icu/samnyan/aqua/sega/aimedb/handler/Impl/LookupHandler.java
index c629d20d..295c1403 100644
--- a/src/main/java/icu/samnyan/aqua/sega/aimedb/handler/Impl/LookupHandler.java
+++ b/src/main/java/icu/samnyan/aqua/sega/aimedb/handler/Impl/LookupHandler.java
@@ -50,7 +50,7 @@ public class LookupHandler implements BaseHandler {
         long aimeId = -1;
         Optional<Card> card = cardRepository.findByLuid((String) requestMap.get("luid"));
         if (card.isPresent()) {
-            aimeId = card.get().getExtId();
+            aimeId = card.get().getExtId().longValue();
         }
 
         Map<String, Object> resultMap = new HashMap<>();
diff --git a/src/main/java/icu/samnyan/aqua/sega/aimedb/handler/Impl/RegisterHandler.java b/src/main/java/icu/samnyan/aqua/sega/aimedb/handler/Impl/RegisterHandler.java
index 4a53ac10..71b9c660 100644
--- a/src/main/java/icu/samnyan/aqua/sega/aimedb/handler/Impl/RegisterHandler.java
+++ b/src/main/java/icu/samnyan/aqua/sega/aimedb/handler/Impl/RegisterHandler.java
@@ -63,7 +63,7 @@ public class RegisterHandler implements BaseHandler {
             cardRepository.save(card);
 
             resultMap.put("status", 1);
-            resultMap.put("aimeId", card.getExtId());
+            resultMap.put("aimeId", card.getExtId().longValue());
         } else {
             logger.warn("Duplicated Aime Card Register detected, access code: {}", requestMap.get("luid"));
             resultMap.put("status", 0);