diff --git a/components/drivers/misc/SConscript b/components/drivers/misc/SConscript
index a8e042554d..4cc5f80084 100644
--- a/components/drivers/misc/SConscript
+++ b/components/drivers/misc/SConscript
@@ -9,7 +9,7 @@ if GetDepend(['RT_USING_PIN']):
     src = src + ['pin.c']
 
 if GetDepend(['RT_USING_PWM']):
-    src = src + ['_pwm.c']
+    src = src + ['rt_drv_pwm.c']
 
 if len(src):
     group = DefineGroup('DeviceDrivers', src, depend = [''], CPPPATH = CPPPATH)
diff --git a/components/drivers/misc/_pwm.c b/components/drivers/misc/rt_drv_pwm.c
similarity index 99%
rename from components/drivers/misc/_pwm.c
rename to components/drivers/misc/rt_drv_pwm.c
index fc5b9b5976..6884f8cfe4 100644
--- a/components/drivers/misc/_pwm.c
+++ b/components/drivers/misc/rt_drv_pwm.c
@@ -1,5 +1,5 @@
 /*
- * File      : _pwm.c
+ * File      : rt_drv_pwm.c
  * This file is part of RT-Thread RTOS
  * COPYRIGHT (C) 2018, RT-Thread Development Team
  *