--- a/STM8S_StdPeriph_Driver/inc/stm8s_uart2.h
+++ b/STM8S_StdPeriph_Driver/inc/stm8s_uart2.h
@@ -415,7 +415,7 @@
 void UART2_ReceiverWakeUpCmd(FunctionalState NewState);
 uint8_t UART2_ReceiveData8(void);
 uint16_t UART2_ReceiveData9(void);
-inline void UART2_SendData8(uint8_t Data);
+void UART2_SendData8(uint8_t Data);
 void UART2_SendData9(uint16_t Data);
 void UART2_SendBreak(void);
 void UART2_SetAddress(uint8_t UART2_Address);