diff --git a/web/assets/js/model/inbound.js b/web/assets/js/model/inbound.js
index 1cef368b..1dd4411f 100644
--- a/web/assets/js/model/inbound.js
+++ b/web/assets/js/model/inbound.js
@@ -1396,6 +1396,8 @@ class Inbound extends XrayCommonClass {
         if (protocol === Protocols.HYSTERIA) {
             this.stream.network = 'hysteria';
             this.stream.security = 'tls';
+            // Hysteria runs over QUIC and must not inherit TCP TLS ALPN defaults.
+            this.stream.tls.alpn = [ALPN_OPTION.H3];
         }
     }
 
@@ -2863,4 +2865,4 @@ Inbound.TunSettings = class extends Inbound.Settings {
             autoOutboundsInterface: this.autoOutboundsInterface,
         };
     }
-};
\ No newline at end of file
+};