Bosses at Alton Towers say too many people riding TH13TEEN ended up chewing insects because it's located in a wooded area.
And after looking into the impact of eating bugs - the majority carry illness-causing bacteria - they decided to do something about it.
The park will now trial the use of natural essential oil of the lemon eucalyptus in a bid to minimise the amount of insects swallowed and killed.
A spokesperson said flies are also surprisingly calorific… 20 flies are apparently the equivalent of a small bag of jelly beans.