diff --git a/Cargo.lock b/Cargo.lock
index 5bd8498e7..8f27df130 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -3623,7 +3623,7 @@ dependencies = [
 [[package]]
 name = "kcp-sys"
 version = "0.1.0"
-source = "git+https://github.com/rustdesk-org/kcp-sys#00e8865454615a5c554d899efd8bc6eae812aaf1"
+source = "git+https://github.com/rustdesk-org/kcp-sys#1e5e30ab8b8c2f7787ab0f88822de36476531562"
 dependencies = [
  "anyhow",
  "auto_impl",
diff --git a/src/common.rs b/src/common.rs
index 8ca291b2b..f2f9d763e 100644
--- a/src/common.rs
+++ b/src/common.rs
@@ -971,7 +971,10 @@ pub fn get_api_server(api: String, custom: String) -> String {
     if res.ends_with('/') {
         res.pop();
     }
-    if res.starts_with("https") && res.ends_with(":21114") {
+    if res.starts_with("https")
+        && res.ends_with(":21114")
+        && get_builtin_option(config::keys::OPTION_ALLOW_HTTPS_21114) != "Y"
+    {
         return res.replace(":21114", "");
     }
     res