diff --git a/includes/Admin/Reports/ReportEmail.php b/includes/Admin/Reports/ReportEmail.php
index db7ba6a8..c13e002f 100644
--- a/includes/Admin/Reports/ReportEmail.php
+++ b/includes/Admin/Reports/ReportEmail.php
@@ -260,7 +260,7 @@ public function receiver_email_address( $email = '' ) {
      */
     public function email_subject() {
         $site_name = get_bloginfo( 'name' );
-        $subject = __( "Weekly Engagement Summary of ‘{$site_name}’", 'notificationx' );
+        $subject = sprintf( __( 'Weekly Engagement Summary of “%s”', 'notificationx' ), $site_name );
         if( isset( $this->settings['reporting_subject'] ) && ! empty( $this->settings['reporting_subject'] ) ) {
             $subject = stripcslashes( $this->settings['reporting_subject'] );
         }
@@ -337,4 +337,4 @@ public function send_email_weekly( $frequency = 'nx_weekly', $test = false, $ema
     public function mail_report_deactivation( $clear_hook = 'weekly_email_reporting' ) {
         wp_clear_scheduled_hook( $clear_hook );
     }
-}
\ No newline at end of file
+}