diff --git a/packages/material-renderers/test/renderers/MaterialArrayLayout.test.tsx b/packages/material-renderers/test/renderers/MaterialArrayLayout.test.tsx
index 6e3149179..ae1bc86cf 100644
--- a/packages/material-renderers/test/renderers/MaterialArrayLayout.test.tsx
+++ b/packages/material-renderers/test/renderers/MaterialArrayLayout.test.tsx
@@ -51,7 +51,7 @@ const data = [
   },
 ];
 
-const emptyData = [];
+const emptyData: any[] = [];
 const schema: JsonSchema7 = {
   type: 'array',
   items: {