diff --git a/bsp/efm32/SConscript b/bsp/efm32/SConscript
index a13a327ee98473d72f4b38a55855a1ec739b156d..55adf12d6ba54f9d3d2a9c85c0bfca54519c1e3b 100644
--- a/bsp/efm32/SConscript
+++ b/bsp/efm32/SConscript
@@ -13,7 +13,7 @@ src_app = ['httpd.c']
 
 src = src_bsp + src_drv1 + src_drv2 + src_dev + src_hdl + src_app
 CPPPATH = [RTT_ROOT + '/bsp/efm32']
-CPPDEFINES = [rtconfig.EFM32_BOARD, rtconfig.EFM32_LCD, rtconfig.EFM32_TYPE]
+CPPDEFINES = [rtconfig.EFM32_LCD, rtconfig.EFM32_TYPE]
 group = DefineGroup('Startup', src, depend = [''], CPPPATH = CPPPATH, CPPDEFINES = CPPDEFINES)
 
 Return('group')
diff --git a/bsp/efm32/rtconfig.h b/bsp/efm32/rtconfig.h
index 04495fc18af43c48ca36217e601fe1bfcf2e3178..91b1e08b8ffac29f60d31fb625023e1fb3bbf93e 100644
--- a/bsp/efm32/rtconfig.h
+++ b/bsp/efm32/rtconfig.h
@@ -16,10 +16,15 @@
 /* Exported types ------------------------------------------------------------*/
 /* Exported constants --------------------------------------------------------*/
 /* Exported macro ------------------------------------------------------------*/
-/* RT_NAME_MAX*/
+/* EFM32_BOARD */
+//#define EFM32_G8XX_STK
+//#define EFM32_GXXX_DK
+#define EFM32GG_DK3750
+
+/* RT_NAME_MAX */
 #define RT_NAME_MAX					(8)
 
-/* RT_ALIGN_SIZE*/
+/* RT_ALIGN_SIZE */
 #define RT_ALIGN_SIZE				(4)
 
 /* PRIORITY_MAX */