diff --git a/lib/std/os/bits/windows.zig b/lib/std/os/bits/windows.zig
index 28a6a251f85d48995888a4c7267213bb8adfe3f0..00ca2a15327eef83c1718d8b8d7b7c27193894d2 100644
--- a/lib/std/os/bits/windows.zig
+++ b/lib/std/os/bits/windows.zig
@@ -22,6 +22,11 @@ pub const timespec = extern struct {
     tv_nsec: c_long,
 };
 
+pub const timeval = extern struct {
+    tv_sec: c_long,
+    tv_usec: c_long,
+};
+
 pub const sig_atomic_t = c_int;
 
 /// maximum signal number + 1