diff --git a/app/assets/javascripts/templates/price_breakdown_button.html.haml b/app/assets/javascripts/templates/price_breakdown_button.html.haml
index 5eff1ef237..1aa104eaca 100644
--- a/app/assets/javascripts/templates/price_breakdown_button.html.haml
+++ b/app/assets/javascripts/templates/price_breakdown_button.html.haml
@@ -1,2 +1,2 @@
-%button.graph-button{"ng-class" => "{open: tt_isOpen}"}
+%button.graph-button{"ng-class" => "{open: tt_isOpen}", type: 'button'}
   / %i.ofn-i_058-graph