diff --git a/scripts/gen_syscalls.py b/scripts/gen_syscalls.py
index ad90629..e385f94 100755
--- a/scripts/gen_syscalls.py
+++ b/scripts/gen_syscalls.py
@@ -24,8 +24,8 @@
 
 list_template = """
 /* auto-generated by gen_syscalls.py, don't edit */
-#ifndef _ZEPHYR_SYSCALL_LIST_H_
-#define _ZEPHYR_SYSCALL_LIST_H_
+#ifndef ZEPHYR_SYSCALL_LIST_H
+#define ZEPHYR_SYSCALL_LIST_H
 
 %s
 
@@ -45,7 +45,7 @@
 
 #endif /* _ASMLANGUAGE */
 
-#endif /* _ZEPHYR_SYSCALL_LIST_H_ */
+#endif /* ZEPHYR_SYSCALL_LIST_H */
 """
 
 syscall_template = """