diff --git a/variants/STM32G4xx/G431R(6-8)(I-T)_G431RB(I-T)x(Z)_G441RB(I-T)/variant_NUCLEO_G431RB.h b/variants/STM32G4xx/G431R(6-8)(I-T)_G431RB(I-T)x(Z)_G441RB(I-T)/variant_NUCLEO_G431RB.h
index f96d84e54e..a5969200c3 100644
--- a/variants/STM32G4xx/G431R(6-8)(I-T)_G431RB(I-T)x(Z)_G441RB(I-T)/variant_NUCLEO_G431RB.h
+++ b/variants/STM32G4xx/G431R(6-8)(I-T)_G431RB(I-T)x(Z)_G441RB(I-T)/variant_NUCLEO_G431RB.h
@@ -172,6 +172,7 @@
   #define HAL_DAC_MODULE_ENABLED
 #endif
 
+#define HSE_VALUE               24000000
 /*----------------------------------------------------------------------------
  *        Arduino objects - C++ only
  *----------------------------------------------------------------------------*/