diff --git a/LUFA/Drivers/USB/Class/Host/HID.h b/LUFA/Drivers/USB/Class/Host/HID.h
index 2f560ebd2f..b9d8f68d6a 100644
--- a/LUFA/Drivers/USB/Class/Host/HID.h
+++ b/LUFA/Drivers/USB/Class/Host/HID.h
@@ -260,7 +260,8 @@
 			 *
 			 *  \return A value from the \ref USB_Host_SendControlErrorCodes_t enum.
 			 */
-			uint8_t HID_Host_SetIdlePeriod(const uint16_t MS);
+			uint8_t HID_Host_SetIdlePeriod(USB_ClassInfo_HID_Host_t* const HIDInterfaceInfo,
+			                               const uint16_t MS);
 
 			#if !defined(HID_HOST_BOOT_PROTOCOL_ONLY)
 			/** Switches the attached HID device's reporting protocol over to the standard Report protocol mode. This also retrieves