diff --git a/web/html/xui/form/stream/stream_kcp.html b/web/html/xui/form/stream/stream_kcp.html
index 5cdee701..97ca4071 100644
--- a/web/html/xui/form/stream/stream_kcp.html
+++ b/web/html/xui/form/stream/stream_kcp.html
@@ -23,25 +23,25 @@
         <a-input v-model.trim="inbound.stream.kcp.seed"></a-input>
     </a-form-item>
     <a-form-item label='MTU'>
-        <a-input-number v-model.number="inbound.stream.kcp.mtu"></a-input-number>
+        <a-input-number v-model.number="inbound.stream.kcp.mtu" :min="576" :max="1460"></a-input-number>
     </a-form-item>
     <a-form-item label='TTI (ms)'>
-        <a-input-number v-model.number="inbound.stream.kcp.tti"></a-input-number>
+        <a-input-number v-model.number="inbound.stream.kcp.tti" :min="10" :max="100"></a-input-number>
     </a-form-item>
     <a-form-item label='Uplink (MB/s)'>
-        <a-input-number v-model.number="inbound.stream.kcp.upCap"></a-input-number>
+        <a-input-number v-model.number="inbound.stream.kcp.upCap" :min="0"></a-input-number>
     </a-form-item> 
     <a-form-item label='Downlink (MB/s)'>
-        <a-input-number v-model.number="inbound.stream.kcp.downCap"></a-input-number>
+        <a-input-number v-model.number="inbound.stream.kcp.downCap" :min="0"></a-input-number>
     </a-form-item>
     <a-form-item label='Congestion'>
         <a-switch v-model="inbound.stream.kcp.congestion"></a-switch>
     </a-form-item>
     <a-form-item label='Read Buffer (MB)'>
-        <a-input-number v-model.number="inbound.stream.kcp.readBuffer"></a-input-number>
+        <a-input-number v-model.number="inbound.stream.kcp.readBuffer" :min="0"></a-input-number>
     </a-form-item>
     <a-form-item label='Write Buffer (MB)'>
-        <a-input-number v-model.number="inbound.stream.kcp.writeBuffer"></a-input-number>
+        <a-input-number v-model.number="inbound.stream.kcp.writeBuffer" :min="0"></a-input-number>
     </a-form-item>
 </a-form>
 {{end}}