diff --git a/src/jtag/drivers/cmsis_dap_usb.c b/src/jtag/drivers/cmsis_dap_usb.c
index 6a7ca2595..38828ea0d 100644
--- a/src/jtag/drivers/cmsis_dap_usb.c
+++ b/src/jtag/drivers/cmsis_dap_usb.c
@@ -247,7 +247,7 @@ static int cmsis_dap_usb_open(void)
 	dev = hid_open(target_vid, target_pid, target_serial);
 
 	if (dev == NULL) {
-		LOG_ERROR("unable to open CMSIS-DAP device");
+		LOG_ERROR("unable to open CMSIS-DAP device 0x%x:0x%x", target_vid, target_pid);
 		return ERROR_FAIL;
 	}