diff --git a/include/sys/utsname.h b/include/sys/utsname.h
index 5f8fc15..5c0f8a9 100644
--- a/include/sys/utsname.h
+++ b/include/sys/utsname.h
@@ -20,6 +20,6 @@ struct utsname {
   char machine[70];
 };
 
-int uname(utsname *);
+int uname(struct utsname *);
 
 #endif