diff --git a/radio/src/eeprom_conversions.cpp b/radio/src/eeprom_conversions.cpp
index fc3e61cfe..4db9ede31 100644
--- a/radio/src/eeprom_conversions.cpp
+++ b/radio/src/eeprom_conversions.cpp
@@ -723,6 +723,11 @@ void ConvertModel_215_to_216(ModelData &model)
 #endif
   }
   g_model.thrTraceSrc = oldModel.thrTraceSrc;
+#if defined(PCBTARANIS)
+  // S3 added
+  if (g_model.thrTraceSrc >= 3)
+    g_model.thrTraceSrc += 1;
+#endif
   g_model.switchWarningStates = oldModel.switchWarningStates >> 1;
   g_model.nSwToWarn = (oldModel.switchWarningStates & 0x01) ? 0xFF : 0;
   for (uint8_t i=0; i<5; i++) {