diff --git a/lib/std/os/linux.zig b/lib/std/os/linux.zig
index 357660a05a..6d05d3b920 100644
--- a/lib/std/os/linux.zig
+++ b/lib/std/os/linux.zig
@@ -1003,14 +1003,14 @@ pub fn socketpair(domain: i32, socket_type: i32, protocol: i32, fd: [2]i32) usiz
     return syscall4(.socketpair, @intCast(usize, domain), @intCast(usize, socket_type), @intCast(usize, protocol), @ptrToInt(&fd[0]));
 }
 
-pub fn accept(fd: i32, noalias addr: *sockaddr, noalias len: *socklen_t) usize {
+pub fn accept(fd: i32, noalias addr: ?*sockaddr, noalias len: ?*socklen_t) usize {
     if (builtin.arch == .i386) {
         return socketcall(SC_accept, &[4]usize{ fd, addr, len, 0 });
     }
     return accept4(fd, addr, len, 0);
 }
 
-pub fn accept4(fd: i32, noalias addr: *sockaddr, noalias len: *socklen_t, flags: u32) usize {
+pub fn accept4(fd: i32, noalias addr: ?*sockaddr, noalias len: ?*socklen_t, flags: u32) usize {
     if (builtin.arch == .i386) {
         return socketcall(SC_accept4, &[4]usize{ @bitCast(usize, @as(isize, fd)), @ptrToInt(addr), @ptrToInt(len), flags });
     }