diff --git a/sysmoOCTSIM/driver_init.h b/sysmoOCTSIM/driver_init.h
index 7067684..25e6370 100644
--- a/sysmoOCTSIM/driver_init.h
+++ b/sysmoOCTSIM/driver_init.h
@@ -21,11 +21,11 @@
 #include <hal_io.h>
 #include <hal_sleep.h>
 
-#include <hal_usart_sync.h>
+#include <hal_usart_async.h>
 
 #include "hal_usb_device.h"
 
-extern struct usart_sync_descriptor UART_debug;
+extern struct usart_async_descriptor UART_debug;
 
 void UART_debug_PORT_init(void);
 void UART_debug_CLOCK_init(void);