diff --git a/lib/std/c.zig b/lib/std/c.zig
index a366c0ca63ae94e088145852a43e2b405b44ae09..72668ba3da965504e834ae49cb99f930426a2c1b 100644
--- a/lib/std/c.zig
+++ b/lib/std/c.zig
@@ -9770,9 +9770,9 @@ pub extern "c" fn freeaddrinfo(res: *addrinfo) void;
 pub extern "c" fn getnameinfo(
     noalias addr: *const sockaddr,
     addrlen: socklen_t,
-    noalias host: [*]u8,
+    noalias host: ?[*]u8,
     hostlen: socklen_t,
-    noalias serv: [*]u8,
+    noalias serv: ?[*]u8,
     servlen: socklen_t,
     flags: u32,
 ) EAI;