diff --git a/frontend/src/schemas/forms/outbound-form.ts b/frontend/src/schemas/forms/outbound-form.ts
index c4ceb074..96ca63bf 100644
--- a/frontend/src/schemas/forms/outbound-form.ts
+++ b/frontend/src/schemas/forms/outbound-form.ts
@@ -64,7 +64,7 @@ export const VlessOutboundFormSettingsSchema = z.object({
   port: PortSchema.default(443),
   id: z.string().default(''),
   flow: z.string().default(''),
-  encryption: z.literal('none').default('none'),
+  encryption: z.string().min(1).default('none'),
   reverseTag: z.string().default(''),
   reverseSniffing: ReverseSniffingFormSchema.default({
     enabled: false,
diff --git a/frontend/src/schemas/protocols/inbound/vless.ts b/frontend/src/schemas/protocols/inbound/vless.ts
index 9badf0d4..381cd7d5 100644
--- a/frontend/src/schemas/protocols/inbound/vless.ts
+++ b/frontend/src/schemas/protocols/inbound/vless.ts
@@ -39,8 +39,8 @@ export type VlessClient = z.infer<typeof VlessClientSchema>;
 
 export const VlessInboundSettingsSchema = z.object({
   clients: z.array(VlessClientSchema).default([]),
-  decryption: z.literal('none').default('none'),
-  encryption: z.literal('none').default('none'),
+  decryption: z.string().min(1).default('none'),
+  encryption: z.string().min(1).default('none'),
   fallbacks: z.array(VlessFallbackSchema).default([]),
   // TODO: narrow to flow === 'xtls-rprx-vision' once a per-flow discriminator
   // exists. 4-positive-int padding seed for xtls-rprx-vision; backend uses
diff --git a/frontend/src/schemas/protocols/outbound/vless.ts b/frontend/src/schemas/protocols/outbound/vless.ts
index 792e4226..32f5ab93 100644
--- a/frontend/src/schemas/protocols/outbound/vless.ts
+++ b/frontend/src/schemas/protocols/outbound/vless.ts
@@ -7,7 +7,7 @@ export const VlessOutboundSettingsSchema = z.object({
   port: z.number().int().min(1).max(65535),
   id: z.uuid(),
   flow: FlowSchema.default(''),
-  encryption: z.literal('none').default('none'),
+  encryption: z.string().min(1).default('none'),
   reverse: z
     .object({
       tag: z.string(),