diff --git a/usb/device/targets/TARGET_STM/USBPhy_STM32.cpp b/usb/device/targets/TARGET_STM/USBPhy_STM32.cpp
index 7990dc02fb..9f1c78d541 100644
--- a/usb/device/targets/TARGET_STM/USBPhy_STM32.cpp
+++ b/usb/device/targets/TARGET_STM/USBPhy_STM32.cpp
@@ -525,10 +525,4 @@ void USBPhyHw::_usbisr(void) {
     instance->events->start_process();
 }
 
-//TODO - remove this hack which allows HAL_Delay to work when interrupts are disabled
-extern "C" uint32_t HAL_GetTick()
-{
-    return ticker_read_us(get_us_ticker_data()) / 1000;
-}
-
 #endif