diff --git a/lib/std/Target.zig b/lib/std/Target.zig
index 24deffbf1a..0f94421f88 100644
--- a/lib/std/Target.zig
+++ b/lib/std/Target.zig
@@ -1175,7 +1175,7 @@ pub const Cpu = struct {
         pub const Set = struct {
             ints: [usize_count]usize,
 
-            pub const needed_bit_count = 288;
+            pub const needed_bit_count = 317;
             pub const byte_count = (needed_bit_count + 7) / 8;
             pub const usize_count = (byte_count + (@sizeOf(usize) - 1)) / @sizeOf(usize);
             pub const Index = std.math.Log2Int(std.meta.Int(.unsigned, usize_count * @bitSizeOf(usize)));