diff --git a/src/zarr/core/array.py b/src/zarr/core/array.py
index 3a455b239f..2cf6d69404 100644
--- a/src/zarr/core/array.py
+++ b/src/zarr/core/array.py
@@ -313,7 +313,7 @@ async def _create_v2(
             chunks=chunks,
             order=order,
             dimension_separator=dimension_separator,
-            fill_value=fill_value,
+            fill_value=0 if fill_value is None else fill_value,
             compressor=compressor,
             filters=filters,
             attributes=attributes,