diff --git a/src/JsonValidator/MultiscaleArrays/ZarrArray/Cube3D.svelte b/src/JsonValidator/MultiscaleArrays/ZarrArray/Cube3D.svelte
index 2c60544..e30b365 100644
--- a/src/JsonValidator/MultiscaleArrays/ZarrArray/Cube3D.svelte
+++ b/src/JsonValidator/MultiscaleArrays/ZarrArray/Cube3D.svelte
@@ -162,7 +162,7 @@
         rgba(70, 70, 70, 0.7) 0px,
         rgba(70, 70, 70, 0.7) 1px,
         transparent 1px,
-        transparent var(--chunkX)
+        transparent var(--chunkY)
       ),
       repeating-linear-gradient(
         90deg,