From d4260b379e100736d80763fbb2548ca7ea7a8914 Mon Sep 17 00:00:00 2001
From: Dimitri Papadopoulos
 <3234522+DimitriPapadopoulos@users.noreply.github.com>
Date: Thu, 19 Jun 2025 21:04:33 +0200
Subject: [PATCH] Appending to dictionary following its definition

---
 src/zarr/core/dtype/npy/structured.py | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/zarr/core/dtype/npy/structured.py b/src/zarr/core/dtype/npy/structured.py
index d9e1ff55ae..07e3000826 100644
--- a/src/zarr/core/dtype/npy/structured.py
+++ b/src/zarr/core/dtype/npy/structured.py
@@ -162,8 +162,10 @@ def to_json(
                 [f_name, f_dtype.to_json(zarr_format=zarr_format)]  # type: ignore[list-item]
                 for f_name, f_dtype in self.fields
             ]
-            base_dict = {"name": self._zarr_v3_name}
-            base_dict["configuration"] = {"fields": fields}  # type: ignore[assignment]
+            base_dict = {
+                "name": self._zarr_v3_name,
+                "configuration": {"fields": fields},
+            }
             return cast("DTypeSpec_V3", base_dict)
         raise ValueError(f"zarr_format must be 2 or 3, got {zarr_format}")  # pragma: no cover