diff --git a/src/teaching/cse-562/2018sp/index.erb b/src/teaching/cse-562/2018sp/index.erb
index 1962f7be..7d89b540 100644
--- a/src/teaching/cse-562/2018sp/index.erb
+++ b/src/teaching/cse-562/2018sp/index.erb
@@ -68,7 +68,7 @@ In this course, you will learn...
<% if data.fetch("due", "") != "" %>Due: <%= data["due"] %>
<% end %>
<%=data["date"]%>: <% if data["type"] != "Lecture" %><%=data["type"]%> –<% end %> <%=data["topic"]%>
<% unless data.fetch("materials", {}).empty? %> ( <%= data["materials"].map { |r,url| "#{r}" }.join(" | ") %> )<% end %>
- <% if data.has_key? "textbook" then %>