diff --git a/app/views/nonprofits/payments/_details_table.html.erb b/app/views/nonprofits/payments/_details_table.html.erb
index 5a95a0fc..7d1545e0 100644
--- a/app/views/nonprofits/payments/_details_table.html.erb
+++ b/app/views/nonprofits/payments/_details_table.html.erb
@@ -180,7 +180,7 @@
 			<td>Email </td>
 			<td>
 				<a>
-					<!--= set_attr 'href' (cat 'mailto ' this.supporter.email) -->
+					<!--= set_attr 'href' (cat 'mailto:' this.supporter.email) -->
 					<!--= put this.supporter.email -->
 				</a>
 			</td>