diff --git a/app/views/finance/invoices/show.html.haml b/app/views/finance/invoices/show.html.haml
index 2912361d..4db9cebd 100644
--- a/app/views/finance/invoices/show.html.haml
+++ b/app/views/finance/invoices/show.html.haml
@@ -48,5 +48,5 @@
   =h @invoice.note
 
 - if @invoice.user_can_edit?(current_user)
-  = link_to t('ui.edit'), edit_finance_invoice_path(@invoice)
+  = link_to t('ui.edit'), edit_finance_invoice_path(@invoice), class: 'btn'
 = link_to t('ui.or_cancel'), finance_invoices_path