diff --git a/frontend/src/components/InTLS.vue b/frontend/src/components/InTLS.vue
index e201d4e..a7001f7 100644
--- a/frontend/src/components/InTLS.vue
+++ b/frontend/src/components/InTLS.vue
@@ -143,9 +143,9 @@ export default {
       usePath: 0,
       defaults: defaultInTls,
       alpn: [
-        { title: "H3", value: 'HTTP/3' },
-        { title: "H2", value: 'HTTP/2' },
-        { title: "Http1.1", value: 'HTTP/1.1' },
+        { title: "H3", value: 'h3' },
+        { title: "H2", value: 'h2' },
+        { title: "Http/1.1", value: 'http/1.1' },
       ],
       tlsVersions: [ '1.0', '1.1', '1.2', '1.3' ],
       cipher_suites: [
diff --git a/frontend/src/types/inTls.ts b/frontend/src/types/inTls.ts
index 9b4f88f..6122dc9 100644
--- a/frontend/src/types/inTls.ts
+++ b/frontend/src/types/inTls.ts
@@ -12,7 +12,7 @@ export interface iTls {
 }
 
 export const defaultInTls: iTls = {
-  alpn: ['HTTP/3', 'HTTP/2', 'HTTP/1.1'],
+  alpn: ['h3', 'h2', 'http/1.1'],
   min_version: "1.2",
   max_version: "1.3",
   cipher_suites: [""],