diff --git a/arch/arm/src/stm32/stm32_otghsdev.c b/arch/arm/src/stm32/stm32_otghsdev.c
index dcab2f0c44..37e75a2e3a 100644
--- a/arch/arm/src/stm32/stm32_otghsdev.c
+++ b/arch/arm/src/stm32/stm32_otghsdev.c
@@ -4364,7 +4364,7 @@ static void stm32_ep_freereq(struct usbdev_ep_s *ep,
 #ifdef CONFIG_USBDEV_DMA
 static void *stm32_ep_allocbuffer(struct usbdev_ep_s *ep, uint16_t bytes)
 {
-  usbtrace(TRACE_EPALLOCBUFFER, privep->epphy);
+  usbtrace(TRACE_EPALLOCBUFFER, ((struct stm32_ep_s *)ep)->epphy);
 
 #ifdef CONFIG_USBDEV_DMAMEMORY
   return usbdev_dma_alloc(bytes);
@@ -4385,7 +4385,7 @@ static void *stm32_ep_allocbuffer(struct usbdev_ep_s *ep, uint16_t bytes)
 #ifdef CONFIG_USBDEV_DMA
 static void stm32_ep_freebuffer(struct usbdev_ep_s *ep, void *buf)
 {
-  usbtrace(TRACE_EPFREEBUFFER, privep->epphy);
+  usbtrace(TRACE_EPFREEBUFFER, ((struct stm32_ep_s *)ep)->epphy);
 
 #ifdef CONFIG_USBDEV_DMAMEMORY
   usbdev_dma_free(buf);