diff --git a/soc/st/stm32/stm32wb0x/Kconfig.defconfig b/soc/st/stm32/stm32wb0x/Kconfig.defconfig
index a0079e8b2a3..19e70895b92 100644
--- a/soc/st/stm32/stm32wb0x/Kconfig.defconfig
+++ b/soc/st/stm32/stm32wb0x/Kconfig.defconfig
@@ -8,6 +8,8 @@ if SOC_SERIES_STM32WB0X
 config NUM_IRQS
 	default 32
 
+if BT
+
 config BT_AUTO_PHY_UPDATE
 	default n
 
@@ -17,4 +19,9 @@ config BT_AUTO_DATA_LEN_UPDATE
 config BT_HCI_ACL_FLOW_CONTROL
 	default n
 
+config MAIN_STACK_SIZE
+	default 1600
+
+endif # BT
+
 endif # SOC_SERIES_STM32WB0X