diff --git a/includes/compat/class-wc-stripe-subscriptions-legacy-sepa-token-update.php b/includes/compat/class-wc-stripe-subscriptions-legacy-sepa-token-update.php
index a3d65b89e..b294942ae 100644
--- a/includes/compat/class-wc-stripe-subscriptions-legacy-sepa-token-update.php
+++ b/includes/compat/class-wc-stripe-subscriptions-legacy-sepa-token-update.php
@@ -124,7 +124,7 @@ private function set_subscription_updated_payment_method( WC_Subscription $subsc
 		$source_id = $subscription->get_meta( self::SOURCE_ID_META_KEY );
 
 		// Bail out if the subscription is already using a pm_.
-		if ( 0 === strpos( $source_id, 'src_' ) ) {
+		if ( 0 !== strpos( $source_id, 'src_' ) ) {
 			throw new \Exception( sprintf( 'The subscription is not using a Stripe Source for renewals.', $subscription->get_id() ) );
 		}