diff --git a/src/Subscription.php b/src/Subscription.php
index a33b584c..e47d3338 100644
--- a/src/Subscription.php
+++ b/src/Subscription.php
@@ -441,8 +441,6 @@ public function extendTrial(CarbonInterface $date)
 
         $subscription = $this->asStripeSubscription();
 
-        $subscription->prorate = $this->prorate;
-
         $subscription->trial_end = $date->getTimestamp();
 
         $subscription->save();