diff --git a/libc/include/sys/utsname.h b/libc/include/sys/utsname.h
index 2420fb4..b3856a7 100644
--- a/libc/include/sys/utsname.h
+++ b/libc/include/sys/utsname.h
@@ -36,16 +36,16 @@
 #define SYS_NMLN 65
 
 struct utsname {
-  char sysname[SYS_NMLN];
-  char nodename[SYS_NMLN];
-  char release[SYS_NMLN];
-  char version[SYS_NMLN];
-  char machine[SYS_NMLN];
-  char domainname[SYS_NMLN];
+    char  sysname   [SYS_NMLN];
+    char  nodename  [SYS_NMLN];
+    char  release   [SYS_NMLN];
+    char  version   [SYS_NMLN];
+    char  machine   [SYS_NMLN];
+    char  domainname[SYS_NMLN];
 };
 
-int uname(struct utsname* __buf);
+int uname(struct utsname*);
 
 __END_DECLS
 
-#endif
+#endif /* _SYS_UTSNAME_H_ */