diff --git a/Target/Source/ARMCM3_STM32F1/usb.c b/Target/Source/ARMCM3_STM32F1/usb.c
index c2dbaab8..559e2008 100644
--- a/Target/Source/ARMCM3_STM32F1/usb.c
+++ b/Target/Source/ARMCM3_STM32F1/usb.c
@@ -31,6 +31,7 @@
 ****************************************************************************************/
 #include "boot.h"                                /* bootloader generic header          */
 #if (BOOT_COM_USB_ENABLE > 0)
+#include "usb.h"                                 /* USB driver module                  */
 #include "usb_lib.h"                             /* USB library driver header          */
 #include "usb_desc.h"                            /* USB descriptor header              */
 #include "usb_pwr.h"                             /* USB power management header        */
@@ -72,14 +73,6 @@ typedef struct
 } tFifoPipe;                                       /**< USB pipe fifo type             */
 
 
-/****************************************************************************************
-* Hook functions
-****************************************************************************************/
-extern void UsbEnterLowPowerModeHook(void);
-extern void UsbLeaveLowPowerModeHook(void);
-extern void UsbConnectHook(blt_bool connect);
-
-
 /****************************************************************************************
 * Function prototypes
 ****************************************************************************************/
diff --git a/Target/Source/ARMCM4_TM4C/usb.c b/Target/Source/ARMCM4_TM4C/usb.c
index 8e85c91b..11843eaa 100644
--- a/Target/Source/ARMCM4_TM4C/usb.c
+++ b/Target/Source/ARMCM4_TM4C/usb.c
@@ -33,6 +33,7 @@
 #if (BOOT_COM_USB_ENABLE > 0)
 #include <stdbool.h>
 #include <stdint.h>
+#include "usb.h"
 #include "usblib.h"
 #include "usbdevice.h"
 #include "usbdbulk.h"
@@ -74,14 +75,6 @@ typedef struct
 } tFifoPipe;                                       /**< USB pipe fifo type             */
 
 
-/****************************************************************************************
-* Hook functions
-****************************************************************************************/
-extern void UsbEnterLowPowerModeHook(void);
-extern void UsbLeaveLowPowerModeHook(void);
-extern void UsbConnectHook(blt_bool connect);
-
-
 /****************************************************************************************
 * Function prototypes
 ****************************************************************************************/