diff --git a/src/slic3r/GUI/GUI_App.cpp b/src/slic3r/GUI/GUI_App.cpp
index 7f2a327c0..9f41031d2 100644
--- a/src/slic3r/GUI/GUI_App.cpp
+++ b/src/slic3r/GUI/GUI_App.cpp
@@ -2478,7 +2478,7 @@ std::map<std::string, std::string> GUI_App::get_extra_header()
 #ifdef _M_X64
     extra_headers.insert(std::make_pair("X-BBL-OS-Type", "windows"));
 #else
-    extra_headers.insert(std::make_pair("X-BBL-OS-Type", "win_arm64"));
+    extra_headers.insert(std::make_pair("X-BBL-OS-Type", "windows_arm"));
 #endif
 #elif defined(__APPLE__)
     extra_headers.insert(std::make_pair("X-BBL-OS-Type", "macos"));
diff --git a/src/slic3r/Utils/PresetUpdater.cpp b/src/slic3r/Utils/PresetUpdater.cpp
index 676658aac..52986a069 100644
--- a/src/slic3r/Utils/PresetUpdater.cpp
+++ b/src/slic3r/Utils/PresetUpdater.cpp
@@ -1172,10 +1172,10 @@ void PresetUpdater::priv::sync_plugins(std::string http_url, std::string plugin_
     if (GUI::wxGetApp().is_running_on_arm64()) {
         //set to arm64 for plugins
         std::map<std::string, std::string> current_headers = Slic3r::Http::get_extra_headers();
-        current_headers["X-BBL-OS-Type"] = "win_arm64";
+        current_headers["X-BBL-OS-Type"] = "windows_arm";
 
         Slic3r::Http::set_extra_headers(current_headers);
-        BOOST_LOG_TRIVIAL(info) << boost::format("set X-BBL-OS-Type to win_arm64");
+        BOOST_LOG_TRIVIAL(info) << boost::format("set X-BBL-OS-Type to windows_arm");
     }
 #endif
     try {