diff --git a/sysmoOCTSIM/driver_init.h b/sysmoOCTSIM/driver_init.h
index 9d009b9..6c4f3a1 100644
--- a/sysmoOCTSIM/driver_init.h
+++ b/sysmoOCTSIM/driver_init.h
@@ -21,15 +21,9 @@
 #include <hal_io.h>
 #include <hal_sleep.h>
 
-#include <hal_usart_async.h>
-#include <hal_usart_async.h>
-#include <hal_usart_async.h>
-#include <hal_usart_async.h>
-#include <hal_usart_async.h>
-#include <hal_usart_async.h>
-#include <hal_usart_async.h>
-
 #include <hal_usart_sync.h>
+#include <hal_usart_async.h>
+#include <hal_usart_async_rings.h>
 
 #include "hal_usb_device.h"
 
@@ -40,7 +34,7 @@
 extern struct usart_async_descriptor SIM4;
 extern struct usart_async_descriptor SIM5;
 extern struct usart_async_descriptor SIM6;
-extern struct usart_async_descriptor UART_debug;
+extern struct usart_async_rings_descriptor UART_debug;
 
 void SIM0_PORT_init(void);
 void SIM0_CLOCK_init(void);