diff --git a/email/worker.go b/email/worker.go
index 288b3e0d528c5967200404969364083a275d9a5e..9e2a0048e5d1ac5dea945b8d2180ae74e904e369 100644
--- a/email/worker.go
+++ b/email/worker.go
@@ -142,7 +142,7 @@ 	}
 	defer cleartext.Close()
 
 	var inlineHeader mail.Header
-	inlineHeader.SetContentType("text/plain", nil)
+	inlineHeader.SetContentType("text/plain", map[string]string{"charset": "UTF-8"})
 	body, err := mail.CreateSingleInlineWriter(cleartext, inlineHeader)
 	if err != nil {
 		panic(err)