diff --git a/cores/arduino/stm32/usb/usbd_if.c b/cores/arduino/stm32/usb/usbd_if.c
index a3f110a4af..752be7fa04 100644
--- a/cores/arduino/stm32/usb/usbd_if.c
+++ b/cores/arduino/stm32/usb/usbd_if.c
@@ -16,7 +16,7 @@
   * @retval None
   */
 
-void USBD_reenumerate(void)
+WEAK void USBD_reenumerate(void)
 {
 #ifndef USBD_REENUM_DISABLED
   /* Re-enumerate the USB */
diff --git a/variants/MALYANM200_F103CB/variant.cpp b/variants/MALYANM200_F103CB/variant.cpp
index 6cd406e8ca..da3bf45978 100644
--- a/variants/MALYANM200_F103CB/variant.cpp
+++ b/variants/MALYANM200_F103CB/variant.cpp
@@ -95,6 +95,16 @@ void initVariant()
   digitalWrite(PB9, 1);
 }
 
+void USBD_reenumerate(void)
+{
+  pinMode(PB9, OUTPUT);
+  digitalWrite(PB9, HIGH);
+  delay(10);
+  digitalWrite(PB9, LOW);
+  delay(10);
+  digitalWrite(PB9, HIGH);
+}
+
 /**
   * @brief  System Clock Configuration
   *         The system Clock is configured as follow :