When creating dynamic links using fields, how to avoid the eloqua parameters?

Hi all,

I'm trying to use a dynamic link for our customers to access a survey.

The survey is unique, so we added a field with the unique codes per record.

<a href="http://surveywebsite.com/?cs=2431&ident=<span class='eloquaemail'>survey_code</span>">

This works, however the final email encodes the link with the eloqua parameters:

http://surveywebsite.com/?cs=2431&ident=T3Z9F40I25&elq=12a5a652ca2c4d8085c4b5c33cf9a457&elqCampaignId=

How can I stop eloqua from adding the '&elq=12a5a652ca2c4d8085c4b5c33cf9a457&elqCampaignId=' it?

Any tips would and ideas are highly appreciated!