diff --git a/lib/std/os/wasi.zig b/lib/std/os/wasi.zig
index e8f4d052ea2b3b8dae73b84390247779475d44d8..7ba2339e063b1bad6a842136f6a7e800f899609c 100644
--- a/lib/std/os/wasi.zig
+++ b/lib/std/os/wasi.zig
@@ -90,8 +90,8 @@ pub fn clock_getres(clock_id: i32, res: *timespec) errno_t {
         return err;
     }
     res.* = .{
-        .tv_sec = @intCast(i64, ts / 1000000000),
-        .tv_nsec = @intCast(isize, ts % 1000000000),
+        .tv_sec = @intCast(i64, ts / std.time.ns_per_s),
+        .tv_nsec = @intCast(isize, ts % std.time.ns_per_s),
     };
     return 0;
 }
@@ -103,8 +103,8 @@ pub fn clock_gettime(clock_id: i32, tp: *timespec) errno_t {
         return err;
     }
     tp.* = .{
-        .tv_sec = @intCast(i64, ts / 1000000000),
-        .tv_nsec = @intCast(isize, ts % 1000000000),
+        .tv_sec = @intCast(i64, ts / std.time.ns_per_s),
+        .tv_nsec = @intCast(isize, ts % std.time.ns_per_s),
     };
     return 0;
 }