diff --git a/web/app/components/datasets/settings/chunk-structure/index.tsx b/web/app/components/datasets/settings/chunk-structure/index.tsx
index 8ffe562725..4cc6d75b4c 100644
--- a/web/app/components/datasets/settings/chunk-structure/index.tsx
+++ b/web/app/components/datasets/settings/chunk-structure/index.tsx
@@ -29,6 +29,7 @@ const ChunkStructure = ({
             effectColor={option.effectColor}
             showEffectColor
             className='gap-x-1.5 p-3 pr-4'
+            disabled
           />
         ))
       }