diff --git a/arch/arm/src/efm32/chip/efm32g_memorymap.h b/arch/arm/src/efm32/chip/efm32g_memorymap.h
index 595bd96887..18fc11d243 100644
--- a/arch/arm/src/efm32/chip/efm32g_memorymap.h
+++ b/arch/arm/src/efm32/chip/efm32g_memorymap.h
@@ -77,7 +77,7 @@
 #define EFM32_USART0_BASE          0x4000c000 /* USART0 base address */
 #define EFM32_USART1_BASE          0x4000c400 /* USART1 base address */
 #define EFM32_USART2_BASE          0x4000c800 /* USART2 base address */
-#define EFM32_UART0_BASE           0x4000e00  /* UART0 base address */
+#define EFM32_UART0_BASE           0x4000e000 /* UART0 base address */
 #define EFM32_TIMER0_BASE          0x40010000 /* TIMER0 base address */
 #define EFM32_TIMER1_BASE          0x40010400 /* TIMER1 base address */
 #define EFM32_TIMER2_BASE          0x40010800 /* TIMER2 base address */
diff --git a/configs/efm32-g8xx-stk/README.txt b/configs/efm32-g8xx-stk/README.txt
index 7f51388e19..63e960e433 100644
--- a/configs/efm32-g8xx-stk/README.txt
+++ b/configs/efm32-g8xx-stk/README.txt
@@ -172,7 +172,7 @@ USING THE J-LINK GDB SERVER
    before things finally began to work.  Don't know why.
 
    To debug code already burned into FLASH:
- 
+
    1. Start the GDB server as above.
 
    2. In a terminal window, start GDB: