nodejs ejs include unexpected identfier

i'm using nodejs + express + ejs and i am having a problem when i try to include another view.

When I try:

<% include dochead %>

I get 'unexpected identifier';
when i try:

<% include /admin/global/dochead %>

I get 'include is not defined';

What is going on? Thanks

I think here <% include /admin/global/dochead %> should be

<% include ../admin/global/dochead %>

or

<% include admin/global/dochead %>

depending on the location. Also check the view engine you use

app.set('view engine', 'ejs');