diff --git a/web/app/components/base/auto-height-textarea/common.tsx b/web/app/components/base/auto-height-textarea/common.tsx
index 0c500974d0..6ec4612c2e 100644
--- a/web/app/components/base/auto-height-textarea/common.tsx
+++ b/web/app/components/base/auto-height-textarea/common.tsx
@@ -38,7 +38,7 @@ const AutoHeightTextarea = forwardRef<HTMLTextAreaElement, AutoHeightTextareaPro
           <textarea
             ref={ref}
             placeholder={placeholder}
-            className={cn(className, 'disabled:bg-transparent absolute inset-0 outline-none border-none appearance-none resize-none')}
+            className={cn(className, 'disabled:bg-transparent absolute inset-0 outline-none border-none appearance-none resize-none w-full h-full')}
             value={value}
             disabled={disabled}
             {...rest}