diff --git a/app/views/reports/customer/index.html.erb b/app/views/reports/customer/index.html.erb
index 328de17f..63efd110 100644
--- a/app/views/reports/customer/index.html.erb
+++ b/app/views/reports/customer/index.html.erb
@@ -83,7 +83,7 @@
                   <%if member_group[0].nil?%>
                     <th colspan="10"> <span class="header-label">Group Type : Normal</span></th>
                   <%else%>
-                    <th colspan="10"> <span class="header-label">Group Type : <%= Lookup.where(:lookup_type=>'membership_type', :value=>member_group[0]).last.name %></span></th>
+                    <th colspan="10"> <span class="header-label">Group Type : <%= Lookup.where(:lookup_type=>'membership_type', :value=>member_group[0]).last.name rescue '-'%></span></th>
                   <%end%>
                 </tr>
               </thead>