diff --git a/fin_depo/data.py b/fin_depo/data.py
index d0aed92..ed291ad 100644
--- a/fin_depo/data.py
+++ b/fin_depo/data.py
@@ -59,9 +59,9 @@ class DepoGroup(Depo):
     nested: list[Depo]
 
     def assets(self) -> Iterable[Asset]:
-        assets: list[Asset] = []
+        assets: set[Asset] = set()
         for nested_depo in self.nested:
-            assets.extend(nested_depo.assets())
+            assets.update(nested_depo.assets())
         return assets
 
     def get_amount_of_asset(self, asset: Asset) -> Decimal:
diff --git a/fin_depo/defi_kucoin.py b/fin_depo/defi_kucoin.py
index d4bfb80..69354e8 100644
--- a/fin_depo/defi_kucoin.py
+++ b/fin_depo/defi_kucoin.py
@@ -38,8 +38,14 @@ class KucoinDepoFetcher(DepoFetcher):
         )
 
     def get_depo(self) -> DepoGroup:
+        # We would ideally get timestamp from request,
+        # but this is fine for now.
         now = datetime.datetime.now(tz=datetime.UTC)
+
+        # Assets are spread across account types, but we would like them
+        # clustered into different depos.
         assets_by_account_type: dict[str, dict[fin_defs.Asset, Decimal]] = {}
+
         for account_data in self.client.get_accounts():
             asset = fin_defs.WELL_KNOWN_SYMBOLS[account_data['currency']]
             balance = Decimal(account_data['balance'])
@@ -51,6 +57,7 @@ class KucoinDepoFetcher(DepoFetcher):
                 assets_for_account_type.get(asset, Decimal(0)) + balance
             )
             del account_data, asset, balance, assets_for_account_type
+
         return DepoGroup(
             'Kucoin',
             now,
diff --git a/test/test_data.py b/test/test_data.py
index a3e981b..bd9f256 100644
--- a/test/test_data.py
+++ b/test/test_data.py
@@ -1,2 +1,17 @@
-def test_nothing():
-    pass
+import datetime
+from decimal import Decimal
+
+import fin_defs
+
+from fin_depo.data import DepoGroup, DepoSingle
+
+
+def test_duplicate_assets():
+    now = datetime.datetime.now(tz=datetime.UTC)
+    single1 = DepoSingle('test1', now, {fin_defs.DKK: Decimal(1000)})
+    single2 = DepoSingle('test2', now, {fin_defs.DKK: Decimal(1000)})
+    group = DepoGroup('test3', now, [single1, single2])
+
+    assert len(group.nested) == 2
+
+    assert len(list(group.assets())) == 1
diff --git a/test/test_nordnet.py b/test/test_nordnet.py
index 55c27dc..2eca71c 100644
--- a/test/test_nordnet.py
+++ b/test/test_nordnet.py
@@ -1,7 +1,7 @@
 import pytest
 import requests
 
-from fin_depo import investbank_nordnet
+from fin_depo import data, investbank_nordnet
 
 from . import secrets
 
@@ -11,6 +11,13 @@ needs_secrets = pytest.mark.skipif(
 )
 
 
+def print_pretty(depo: data.Depo):
+    for asset in depo.assets():
+        amount = depo.get_amount_of_asset(asset)
+        print(f'{str(asset):15} : {amount:10}')
+        del asset, amount
+
+
 @needs_secrets
 def test_get_depo():
     session = requests.Session()
@@ -21,4 +28,5 @@ def test_get_depo():
     )
 
     depo = fetcher.get_depo()
+    print_pretty(depo)
     assert depo is not None