diff --git a/components/drivers/usb/usbdevice/SConscript b/components/drivers/usb/usbdevice/SConscript
index 010b9837a4..876875f8bc 100644
--- a/components/drivers/usb/usbdevice/SConscript
+++ b/components/drivers/usb/usbdevice/SConscript
@@ -3,7 +3,7 @@ from building import *
 
 cwd = GetCurrentDir()
 src = Split("""
-core/core.c
+core/ud_core.c
 core/usbdevice.c
 """)
 
diff --git a/components/drivers/usb/usbdevice/core/core.c b/components/drivers/usb/usbdevice/core/ud_core.c
similarity index 100%
rename from components/drivers/usb/usbdevice/core/core.c
rename to components/drivers/usb/usbdevice/core/ud_core.c
diff --git a/components/drivers/usb/usbhost/SConscript b/components/drivers/usb/usbhost/SConscript
index b12adfc5ad..f497f8868d 100644
--- a/components/drivers/usb/usbhost/SConscript
+++ b/components/drivers/usb/usbhost/SConscript
@@ -3,7 +3,7 @@ from building import *
 
 cwd = GetCurrentDir()
 src = Split("""
-core/core.c
+core/uh_core.c
 core/driver.c
 core/usbhost.c
 core/hub.c
diff --git a/components/drivers/usb/usbhost/core/core.c b/components/drivers/usb/usbhost/core/uh_core.c
similarity index 100%
rename from components/drivers/usb/usbhost/core/core.c
rename to components/drivers/usb/usbhost/core/uh_core.c