diff --git a/includes/admin/class-wc-admin.php b/includes/admin/class-wc-admin.php
index f132a43f0fa..9f1c51ebb5f 100644
--- a/includes/admin/class-wc-admin.php
+++ b/includes/admin/class-wc-admin.php
@@ -180,7 +180,7 @@ class WC_Admin {
 			$email         = new WC_Email();
 
 			// wrap the content with the email template and then add styles
-			$message       = $email->style_inline( $mailer->wrap_message( $email_heading, $message ) );
+			$message       = apply_filters( 'woocommerce_mail_content', $email->style_inline( $mailer->wrap_message( $email_heading, $message ) ) );
 
 			// print the preview email
 			echo $message;