diff --git a/src/Access.php b/src/Access.php
index e1b84e9..10e8598 100644
--- a/src/Access.php
+++ b/src/Access.php
@@ -329,11 +329,11 @@ public function user_can_view_content( $args = [] ) {
 		$group      = new Group( $group_id );
 		$membership = new Membership( get_current_user_id() );
 
-		if ($group_id) {
+		if ( $group_id ) {
 			if ( ! is_user_logged_in() || ! $membership->is_valid_for_group( $group_id ) ) {
 				return false;
 			}
-        }
+		}
 
 		if ( $is_member == 'yes' ) {
 			// Check, if the user is logged in and is member of the group, if not, bail
diff --git a/src/Membership.php b/src/Membership.php
index d35c455..b4d3c6e 100644
--- a/src/Membership.php
+++ b/src/Membership.php
@@ -107,11 +107,11 @@ public function is_valid_for_group( $group_id ) {
 				continue;
 			}
 
-			if (!empty($group['subscription_date']) && $group['subscription_date'] >= date( 'Y-m-d' )) {
+			if ( ! empty( $group['subscription_date'] ) && $group['subscription_date'] >= date( 'Y-m-d' ) ) {
 				return false;
 			}
 
-			if (!empty($group['valid_to']) && $group['valid_to'] <= date( 'Y-m-d' )) {
+			if ( ! empty( $group['valid_to'] ) && $group['valid_to'] <= date( 'Y-m-d' ) ) {
 				return false;
 			}