diff --git a/packages/smarthr-ui/src/components/Dialog/StepFormDialog.stories.tsx b/packages/smarthr-ui/src/components/Dialog/StepFormDialog.stories.tsx
index 469e897995..fbc15e2d41 100644
--- a/packages/smarthr-ui/src/components/Dialog/StepFormDialog.stories.tsx
+++ b/packages/smarthr-ui/src/components/Dialog/StepFormDialog.stories.tsx
@@ -36,10 +36,6 @@ export default {
   },
 }
 
-const RadioListCluster = styled(Cluster).attrs({ gap: 1.25 })`
-  list-style: none;
-`
-
 export const Default: StoryFn = () => {
   const [openedDialog, setOpenedDialog] = useState<'normal' | 'opened' | null>(null)
   const [value, setValue] = React.useState('Apple')
@@ -138,3 +134,7 @@ Default.parameters = {
     },
   },
 }
+
+const RadioListCluster = styled(Cluster).attrs({ gap: 1.25 })`
+  list-style: none;
+`
diff --git a/packages/smarthr-ui/src/components/Dialog/StepFormDialog/StepFormDialogContentInner.tsx b/packages/smarthr-ui/src/components/Dialog/StepFormDialog/StepFormDialogContentInner.tsx
index 3637b55024..c15a1e02ed 100644
--- a/packages/smarthr-ui/src/components/Dialog/StepFormDialog/StepFormDialogContentInner.tsx
+++ b/packages/smarthr-ui/src/components/Dialog/StepFormDialog/StepFormDialogContentInner.tsx
@@ -109,7 +109,7 @@ export const StepFormDialogContentInner: FC<StepFormDialogContentInnerProps> = (
           <Stack gap={0.5} className={actionArea()}>
             <Cluster justify="space-between">
               {activeStep > 0 && (
-                <Button onClick={onClickBack}>
+                <Button onClick={onClickBack} className="smarthr-ui-Dialog-backButton">
                   {decorators?.backButtonLabel?.(BACK_BUTTON_LABEL) || BACK_BUTTON_LABEL}
                 </Button>
               )}