diff --git a/ffc/client.py b/ffc/client.py
index 9141c91..34d0167 100644
--- a/ffc/client.py
+++ b/ffc/client.py
@@ -120,7 +120,7 @@ def get_organization_by_external_id(self, agreement_id):
 
         response.raise_for_status()
 
-        return response.json()["items"]
+        return response.json()["items"][0]
 
     def _get_headers(self):
         return {
diff --git a/tests/ffc/test_client.py b/tests/ffc/test_client.py
index 9b172ae..25a3c37 100644
--- a/tests/ffc/test_client.py
+++ b/tests/ffc/test_client.py
@@ -232,6 +232,6 @@ def test_get_organization(mocker, mock_jwt_encoder, ffc_client_settings):
     )
 
     client = get_ffc_client()
-    organizations = client.get_organization_by_external_id(agreement_id)
+    organization = client.get_organization_by_external_id(agreement_id)
 
-    assert organizations == [{"id": "test-organization"}]
+    assert organization == {"id": "test-organization"}