diff --git a/src/notifications.scm b/src/notifications.scm
index 3eecad7..349f28c 100644
--- a/src/notifications.scm
+++ b/src/notifications.scm
@@ -120,7 +120,9 @@
    (make-ldict
     `((to . ,(brmember-info mr 'mail))
       (subject . "Připomínka členských příspěvků / Membership fees reminder")
-      (body . ,(reminder-email-body mr)))))
+      (body . ,(reminder-email-body mr))
+      (header .,(list (format "Content-Type: text/plain; charset=\"UTF-8\"")))
+      )))
 
  ;; Creates and prints reminder email for given member record
  (define (make+print-reminder-email mr)