diff --git a/arch/arm64/configs/gki_defconfig b/arch/arm64/configs/gki_defconfig
index a9f2f4afb940..059d1254b125 100644
--- a/arch/arm64/configs/gki_defconfig
+++ b/arch/arm64/configs/gki_defconfig
@@ -299,6 +299,7 @@ CONFIG_SERIAL_8250=y
 # CONFIG_SERIAL_8250_DEPRECATED_OPTIONS is not set
 CONFIG_SERIAL_8250_CONSOLE=y
 # CONFIG_SERIAL_8250_EXAR is not set
+CONFIG_SERIAL_8250_RUNTIME_UARTS=0
 CONFIG_SERIAL_OF_PLATFORM=y
 CONFIG_SERIAL_AMBA_PL011=y
 CONFIG_SERIAL_AMBA_PL011_CONSOLE=y
diff --git a/arch/x86/configs/gki_defconfig b/arch/x86/configs/gki_defconfig
index 3f3aaaf99b50..1ab87f424e17 100644
--- a/arch/x86/configs/gki_defconfig
+++ b/arch/x86/configs/gki_defconfig
@@ -268,7 +268,7 @@ CONFIG_INPUT_UINPUT=y
 CONFIG_SERIAL_8250=y
 # CONFIG_SERIAL_8250_DEPRECATED_OPTIONS is not set
 CONFIG_SERIAL_8250_CONSOLE=y
-# CONFIG_SERIAL_8250_EXAR is not set
+CONFIG_SERIAL_8250_RUNTIME_UARTS=0
 CONFIG_SERIAL_OF_PLATFORM=y
 CONFIG_SERIAL_MSM_GENI_EARLY_CONSOLE=y
 CONFIG_SERIAL_DEV_BUS=y