diff --git a/src/extra-backend/src/Gauge_Extra_Backend.cpp b/src/extra-backend/src/Gauge_Extra_Backend.cpp
index 05f760ef98f6..57460c54eba5 100644
--- a/src/extra-backend/src/Gauge_Extra_Backend.cpp
+++ b/src/extra-backend/src/Gauge_Extra_Backend.cpp
@@ -45,9 +45,12 @@ AircraftPresets aircraftPresets(&msfsHandler);
  *
  * @see https://docs.flightsimulator.com/html/Content_Configuration/SimObjects/Aircraft_SimO/Instruments/C_C++_Gauges.htm?rhhlterm=_gauge_callback&rhsearch=_gauge_callback
  */
-__attribute__((export_name("Gauge_Extra_Backend_gauge_callback"))) extern "C" __attribute__((unused)) bool
-Gauge_Extra_Backend(__attribute__((unused)) FsContext ctx, int service_id, void* pData) {
-  switch (service_id) {
+extern "C" {
+[[maybe_unused]]
+MSFS_CALLBACK bool Gauge_Extra_Backend_gauge_callback(
+  [[maybe_unused]] FsContext ctx, int svcId, void* pData) {
+
+  switch (svcId) {
     case PANEL_SERVICE_PRE_INSTALL: {
       return msfsHandler.initialize();
     }
@@ -61,6 +64,8 @@ Gauge_Extra_Backend(__attribute__((unused)) FsContext ctx, int service_id, void*
       break;
   }
   return false;
+
+}
 }
 
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