diff --git a/backend/app/cmd/server.go b/backend/app/cmd/server.go
index 29ee77c0..961f2fe9 100644
--- a/backend/app/cmd/server.go
+++ b/backend/app/cmd/server.go
@@ -198,7 +198,7 @@ type NotifyGroup struct {
 		API     string        `long:"api" env:"API" default:"https://api.telegram.org/bot" description:"telegram api prefix"`
 	} `group:"telegram" namespace:"telegram" env-namespace:"TELEGRAM"`
 	Email struct {
-		From                string `long:"fromAddress" env:"FROM" description:"from email address"`
+		From                string `long:"from_address" env:"FROM" description:"from email address"`
 		VerificationSubject string `long:"verification_subj" env:"VERIFICATION_SUBJ" description:"verification message subject"`
 		AdminNotifications  bool   `long:"notify_admin" env:"ADMIN" description:"notify admin on new comments via ADMIN_SHARED_EMAIL"`
 	} `group:"email" namespace:"email" env-namespace:"EMAIL"`