diff --git a/app/views/memos/show.html.erb b/app/views/memos/show.html.erb
index 75030797b..76e4990a5 100644
--- a/app/views/memos/show.html.erb
+++ b/app/views/memos/show.html.erb
@@ -46,7 +46,7 @@
 				
 		</div>
 
-		<div class="memo-title <%= @memo.sticky ? 'sticky' : '' %> <%= @memo.locked? ? 'locked' : '' %>"><%= label_tag l(:field_subject) %>: <%=h @memo.subject %></div>
+		<div class="memo-title <%= @memo.sticky ? 'sticky' : '' %> <%= @memo.locked? ? 'locked' : '' %>" style="word-break: break-all;"><%= label_tag l(:field_subject) %>: <%=h @memo.subject %></div>
 		<div class="memo-content">
 		<%= textAreailizable(@memo,:content) %>
 			<p>