diff --git a/src/DebugToolDrivers/WCH/Protocols/WchLink/WchLinkInterface.cpp b/src/DebugToolDrivers/WCH/Protocols/WchLink/WchLinkInterface.cpp
index 1d9b58e8..5ca27464 100644
--- a/src/DebugToolDrivers/WCH/Protocols/WchLink/WchLinkInterface.cpp
+++ b/src/DebugToolDrivers/WCH/Protocols/WchLink/WchLinkInterface.cpp
@@ -43,12 +43,12 @@ namespace DebugToolDrivers::Wch::Protocols::WchLink
             {0x03, WchLinkVariant::LINK_S_CH32V203},
         };
 
-        return DeviceInfo(
+        return DeviceInfo{
             WchFirmwareVersion{response.payload[0], response.payload[1]},
             response.payload.size() >= 4
-                ? std::optional{variantsById.valueAt(response.payload[2]).value_or(WchLinkVariant::UNKNOWN)}
+                ? std::optional{variantsById.valueAt(response.payload[2])}
                 : std::nullopt
-        );
+        };
     }
 
     void WchLinkInterface::activate() {
diff --git a/src/DebugToolDrivers/WCH/WchGeneric.hpp b/src/DebugToolDrivers/WCH/WchGeneric.hpp
index 6a07d970..b5ee1bbc 100644
--- a/src/DebugToolDrivers/WCH/WchGeneric.hpp
+++ b/src/DebugToolDrivers/WCH/WchGeneric.hpp
@@ -11,7 +11,6 @@ namespace DebugToolDrivers::Wch
         LINK_CH549,
         LINK_E_CH32V307,
         LINK_S_CH32V203,
-        UNKNOWN,
     };
 
     enum class WchLinkTargetClockSpeed: std::uint8_t