diff --git a/kernel_config_service_vm b/kernel_config_service_vm
index 7ecbb0435670..f7afe7b8afd0 100644
--- a/kernel_config_service_vm
+++ b/kernel_config_service_vm
@@ -421,7 +421,8 @@ CONFIG_INPUT_SOC_BUTTON_ARRAY=y
 # CONFIG_LEGACY_PTYS is not set
 CONFIG_SERIAL_8250=y
 CONFIG_SERIAL_8250_CONSOLE=y
-CONFIG_SERIAL_8250_NR_UARTS=32
+CONFIG_SERIAL_8250_NR_UARTS=48
+CONFIG_SERIAL_8250_RUNTIME_UARTS=32
 CONFIG_SERIAL_8250_EXTENDED=y
 CONFIG_SERIAL_8250_MANY_PORTS=y
 CONFIG_SERIAL_8250_SHARE_IRQ=y