XHTML 1.0 Trans validation fails for - ID "edit-formsingle_token" already defined

When I validate my code on w3.org I get the following error in regards to Form Single:

# Error Line 87 column 55: ID "edit-formsingle_token" already defined.

...n" name="edit[formsingle_token]" id="edit-formsingle_token" value="f5de947a78

An "id" is a unique identifier. Each time this attribute is used in a document it must have a different value. If you are using this attribute as a hook for style sheets it may be more appropriate to use classes (which group elements) than id (which are used to identify exactly one element).

# Info Line 50 column 55: ID "edit-formsingle_token" first defined here.

...n" name="edit[formsingle_token]" id="edit-formsingle_token" value="7ffa1a8ffc

Here are the entire lines:

Line 87:
<input type="hidden" name="edit[formsingle_token]" id="edit-formsingle_token" value="fa72f24892ebedc3ba0711dad16fffd3"  />

Line 50:
<input type="hidden" name="edit[formsingle_token]" id="edit-formsingle_token" value="35dc086f37f02595b9d3f5e7934674a3"  />

I would love it if my code would validate for XHTML 1.0 Transitional - is there any way to fix this? Or is this needed for Form Single to operate?

Thanks