diff --git a/Demo/CORTEX_STM32F100_Atollic/Simple_Demo_Source/stm32f10x_conf.h b/Demo/CORTEX_STM32F100_Atollic/Simple_Demo_Source/stm32f10x_conf.h
index 19049ed..b19a93c 100644
--- a/Demo/CORTEX_STM32F100_Atollic/Simple_Demo_Source/stm32f10x_conf.h
+++ b/Demo/CORTEX_STM32F100_Atollic/Simple_Demo_Source/stm32f10x_conf.h
@@ -24,28 +24,9 @@
 
 /* Includes ------------------------------------------------------------------*/
 /* Uncomment the line below to enable peripheral header file inclusion */
-#include "stm32f10x_adc.h"
-#include "stm32f10x_bkp.h"
-#include "stm32f10x_can.h"
-#include "stm32f10x_cec.h"
-#include "stm32f10x_crc.h"
-#include "stm32f10x_dac.h"
-#include "stm32f10x_dbgmcu.h"
-#include "stm32f10x_dma.h"
 #include "stm32f10x_exti.h"
-#include "stm32f10x_flash.h"
-#include "stm32f10x_fsmc.h"
 #include "stm32f10x_gpio.h"
-#include "stm32f10x_i2c.h"
-#include "stm32f10x_iwdg.h"
-#include "stm32f10x_pwr.h"
 #include "stm32f10x_rcc.h"
-#include "stm32f10x_rtc.h"
-#include "stm32f10x_sdio.h"
-#include "stm32f10x_spi.h"
-#include "stm32f10x_tim.h"
-#include "stm32f10x_usart.h"
-#include "stm32f10x_wwdg.h"
 #include "misc.h" /* High level functions for NVIC and SysTick (add-on to CMSIS functions) */
 
 /* Exported types ------------------------------------------------------------*/