diff --git a/src/io.ts b/src/io.ts
index 2f0de8d4..7a7d81c7 100644
--- a/src/io.ts
+++ b/src/io.ts
@@ -125,6 +125,7 @@ function isNested(attrs: Ome.Attrs) {
   } else if ('well' in attrs) {
     version = attrs.well.version;
   }
+  // OME-Zarr uses nested chunks since version 0.2
   return version && version !== '0.1';
 }
 
diff --git a/src/ome.ts b/src/ome.ts
index 5ba27378..1d1ee509 100644
--- a/src/ome.ts
+++ b/src/ome.ts
@@ -2,17 +2,10 @@ import { ZarrPixelSource } from '@hms-dbmi/viv';
 import pMap from 'p-map';
 import { Group as ZarrGroup, HTTPStore, openGroup, ZarrArray } from 'zarr';
 import type { ImageLayerConfig, SourceData } from './state';
-import { guessTileSize, join, loadMultiscales, nested, parseMatrix, range } from './utils';
+import { join, loadMultiscales, guessTileSize, range, parseMatrix } from './utils';
 
-// OME-Zarr uses nested chunks since version 0.2
-function isNested(version: String | undefined): boolean {
-  return version != undefined && version !== '0.1';
-}
 
 export async function loadWell(config: ImageLayerConfig, grp: ZarrGroup, wellAttrs: Ome.Well): Promise<SourceData> {
-  if (isNested(wellAttrs.version)) {
-    grp.store = nested(grp.store);
-  }
   // Can filter Well fields by URL query ?acquisition=ID
   const acquisitionId: number | undefined = config.acquisition ? parseInt(config.acquisition) : undefined;
   let acquisitions: Ome.Acquisition[] = [];
@@ -113,9 +106,6 @@ export async function loadWell(config: ImageLayerConfig, grp: ZarrGroup, wellAtt
 }
 
 export async function loadPlate(config: ImageLayerConfig, grp: ZarrGroup, plateAttrs: Ome.Plate): Promise<SourceData> {
-  if (isNested(plateAttrs.version)) {
-    grp.store = nested(grp.store);
-  }
   if (!('columns' in plateAttrs) || !('rows' in plateAttrs)) {
     throw Error(`Plate .zattrs missing columns or rows`);
   }
@@ -204,9 +194,6 @@ export async function loadOmeroMultiscales(
   grp: ZarrGroup,
   attrs: { multiscales: Ome.Multiscale[]; omero: Ome.Omero }
 ): Promise<SourceData> {
-  if (isNested(attrs.multiscales[0]?.version)) {
-    grp.store = nested(grp.store);
-  }
   const { name, opacity = 1, colormap = '' } = config;
   const data = await loadMultiscales(grp, attrs.multiscales);
   const meta = parseOmeroMeta(attrs.omero);