diff --git a/lib/std/c.zig b/lib/std/c.zig
index 7cec1df782aea6ee099cfc52cf30bdab0dde7e18..516185878b62624fb329934a2cbb488f2ca7d98d 100644
--- a/lib/std/c.zig
+++ b/lib/std/c.zig
@@ -10353,7 +10353,7 @@ pub extern "c" fn setrlimit64(resource: rlimit_resource, rlim: *const rlimit) c_
 
 pub const arc4random_buf = switch (native_os) {
     .linux => if (builtin.abi.isAndroid()) private.arc4random_buf else {},
-    .dragonfly, .netbsd, .freebsd, .solaris, .openbsd, .macos, .ios, .tvos, .watchos, .visionos => private.arc4random_buf,
+    .dragonfly, .netbsd, .freebsd, .solaris, .openbsd, .serenity, .macos, .ios, .tvos, .watchos, .visionos => private.arc4random_buf,
     else => {},
 };
 pub const getentropy = switch (native_os) {
diff --git a/lib/std/posix.zig b/lib/std/posix.zig
index 1bce41c2e99a074cab5b91e04cd7f44db521a228..815d2894e955a172e0a8c9fd0a9eaa90f6b01ba8 100644
--- a/lib/std/posix.zig
+++ b/lib/std/posix.zig
@@ -672,7 +672,7 @@ fn getRandomBytesDevURandom(buf: []u8) !void {
 
     const file: fs.File = .{ .handle = fd };
     var file_reader = file.readerStreaming(&.{});
-    file_reader.readSliceAll(buf) catch return error.Unexpected;
+    file_reader.interface.readSliceAll(buf) catch return error.Unexpected;
 }
 
 /// Causes abnormal process termination.