diff --git a/os/common/ext/CMSIS/ES32/FS026/system_fs026.h b/os/common/ext/CMSIS/ES32/FS026/system_fs026.h
index 03dbc42627..78afadc629 100644
--- a/os/common/ext/CMSIS/ES32/FS026/system_fs026.h
+++ b/os/common/ext/CMSIS/ES32/FS026/system_fs026.h
@@ -32,7 +32,7 @@
 /* Define to prevent recursive inclusion -------------------------------------*/ 
 
 #ifndef __SYSTEM_FS026_H__
-#define __SYSTEM_ES32F0283_H__
+#define __SYSTEM_FS026_H__
 
 #ifdef __cplusplus
  extern "C" {