diff --git a/bsp/simulator/drivers/sdl_fb.c b/bsp/simulator/drivers/sdl_fb.c
index 7b25da9c3c..995b12219e 100755
--- a/bsp/simulator/drivers/sdl_fb.c
+++ b/bsp/simulator/drivers/sdl_fb.c
@@ -221,7 +221,7 @@ static void sdlfb_hw_init(void)
     rt_device_register(RT_DEVICE(&_device), "sdl", RT_DEVICE_FLAG_RDWR);
 
     sdllock = rt_mutex_create("fb", RT_IPC_FLAG_FIFO);
-    if (sdllock == RT_NULL) 
+    if (sdllock == RT_NULL)
     {
         LOG_E("Create mutex for sdlfb failed!");
     }
diff --git a/bsp/simulator/drivers/sst25vfxx_mtd_sim.c b/bsp/simulator/drivers/sst25vfxx_mtd_sim.c
index 4460e1da3b..bc44699a10 100644
--- a/bsp/simulator/drivers/sst25vfxx_mtd_sim.c
+++ b/bsp/simulator/drivers/sst25vfxx_mtd_sim.c
@@ -16,7 +16,7 @@
 
 #ifdef RT_USING_MTD_NOR
 #define NOR_SIM "nor.bin"
-/* JEDEC Manufacturer’s ID */
+/* JEDEC Manufacturer's ID */
 #define MF_ID           (0xBF)
 /* JEDEC Device ID : Memory Type */
 #define MT_ID           (0x25)