1 files changed, 4 insertions, 1 deletions
diff --git a/testhal/STM32F4xx/USB_CDC/main.c b/testhal/STM32F4xx/USB_CDC/main.c
index 2426320ff..dd01ecb25 100644
--- a/testhal/STM32F4xx/USB_CDC/main.c
+++ b/testhal/STM32F4xx/USB_CDC/main.c
@@ -457,7 +457,8 @@ static msg_t Thread1(void *arg) {
  * Application entry point.
  */
 int main(void) {
-thread_t *shelltp = NULL;
+  static THD_WORKING_AREA(wa_usb_lld_pump, STM32_USB_OTG_THREAD_STACK_SIZE);
+  thread_t *shelltp = NULL;
 
   /*
    * System initializations.
@@ -480,6 +481,8 @@ thread_t *shelltp = NULL;
    * Note, a delay is inserted in order to not have to disconnect the cable
    * after a reset.
    */
+  chThdCreateStatic(wa_usb_lld_pump, sizeof(wa_usb_lld_pump),
+                    STM32_USB_OTG_THREAD_PRIO, usb_lld_pump, serusbcfg.usbp);
   usbDisconnectBus(serusbcfg.usbp);
   chThdSleepMilliseconds(1500);
   usbStart(serusbcfg.usbp, &usbcfg);