diff --git a/Inc/main.h b/Inc/main.h
index 5cc3cf8..b39688d 100644
--- a/Inc/main.h
+++ b/Inc/main.h
@@ -187,7 +187,7 @@ void SysClock4(void);
 #ifdef __cplusplus
  extern "C" {
 #endif
-void _Error_Handler(char *, int);
+void _Error_Handler(char *, int) __attribute__ ((noreturn));
 
 #define Error_Handler() _Error_Handler(__FILE__, __LINE__)
 #ifdef __cplusplus