diff --git a/arch/arm/src/stm32l4/Kconfig b/arch/arm/src/stm32l4/Kconfig
index b6eba519cd..1192f839f8 100644
--- a/arch/arm/src/stm32l4/Kconfig
+++ b/arch/arm/src/stm32l4/Kconfig
@@ -45,6 +45,8 @@ config STM32L4_STM32L476XX
 	select ARMV7M_HAVE_ITCM
 	select ARMV7M_HAVE_DTCM
 	select STM32L4_HAVE_USART3
+	select STM32L4_HAVE_UART4
+	select STM32L4_HAVE_UART5
 
 config STM32L4_STM32L486XX
 	bool
@@ -53,6 +55,9 @@ config STM32L4_STM32L486XX
 	select ARCH_HAVE_DPFPU # REVISIT
 	select ARMV7M_HAVE_ITCM
 	select ARMV7M_HAVE_DTCM
+	select STM32L4_HAVE_USART3
+	select STM32L4_HAVE_UART4
+	select STM32L4_HAVE_UART5
 	select STM32L4_FLASH_1024KB
 
 choice
@@ -425,7 +430,7 @@ config STM32L4_USART3
 config STM32L4_UART4
 	bool "UART4"
 	default n
-	depends on STM32L4_HAVE_USART4
+	depends on STM32L4_HAVE_UART4
 	select ARCH_HAVE_SERIAL_TERMIOS
 	select UART4_SERIALDRIVER
 	select STM32L4_USART
@@ -433,7 +438,7 @@ config STM32L4_UART4
 config STM32L4_UART5
 	bool "UART5"
 	default n
-	depends on STM32L4_HAVE_USART5
+	depends on STM32L4_HAVE_UART5
 	select ARCH_HAVE_SERIAL_TERMIOS
 	select UART5_SERIALDRIVER
 	select STM32L4_USART
@@ -2507,11 +2512,11 @@ config STM32L4_HAVE_USART3
 	bool
 	default n
 
-config STM32L4_HAVE_USART4
+config STM32L4_HAVE_UART4
 	bool
 	default n
 
-config STM32L4_HAVE_USART5
+config STM32L4_HAVE_UART5
 	bool
 	default n
 
diff --git a/arch/arm/src/stm32l4/stm32l4_serial.c b/arch/arm/src/stm32l4/stm32l4_serial.c
index e85e73a3e3..8e4b8d3bee 100644
--- a/arch/arm/src/stm32l4/stm32l4_serial.c
+++ b/arch/arm/src/stm32l4/stm32l4_serial.c
@@ -96,7 +96,7 @@
 
 #  if defined(CONFIG_UART4_RXDMA) || defined(CONFIG_UART5_RXDMA)
 #    ifndef CONFIG_STM32L4_DMA2
-#      error STM32L4 USART4/5 receive DMA requires CONFIG_STM32L4_DMA2
+#      error STM32L4 UART4/5 receive DMA requires CONFIG_STM32L4_DMA2
 #    endif
 #  endif