diff --git a/apps/admin/app/dashboard/subscribe/template-preview.tsx b/apps/admin/app/dashboard/subscribe/template-preview.tsx
index 61933f3..a616bef 100644
--- a/apps/admin/app/dashboard/subscribe/template-preview.tsx
+++ b/apps/admin/app/dashboard/subscribe/template-preview.tsx
@@ -96,6 +96,7 @@ export function TemplatePreview({ applicationId, output_format }: TemplatePrevie
             title={t('title')}
             value={getDisplayContent()}
             language={mapLanguage(output_format)}
+            showLineNumbers
             readOnly
           />
         )}
diff --git a/packages/ui/src/custom-components/editor/monaco-editor.tsx b/packages/ui/src/custom-components/editor/monaco-editor.tsx
index bd6ef6a..b3414b4 100644
--- a/packages/ui/src/custom-components/editor/monaco-editor.tsx
+++ b/packages/ui/src/custom-components/editor/monaco-editor.tsx
@@ -168,7 +168,12 @@ export function MonacoEditor({
               />
               {!internalValue?.trim() && placeholder && (
                 <pre
-                  className='text-muted-foreground pointer-events-none absolute left-7 top-4 text-sm'
+                  className={cn(
+                    'text-muted-foreground pointer-events-none absolute left-7 top-4 text-sm',
+                    {
+                      'left-16': showLineNumbers,
+                    },
+                  )}
                   style={{ userSelect: 'none' }}
                 >
                   {placeholder}