diff --git a/test/behavior/math.zig b/test/behavior/math.zig
index a8f80cd5a7..2257a116b7 100644
--- a/test/behavior/math.zig
+++ b/test/behavior/math.zig
@@ -378,6 +378,12 @@ fn testBinaryNot(x: u16) !void {
 }
 
 test "binary not 128-bit" {
+    if (builtin.zig_backend == .stage2_wasm) return error.SkipZigTest; // TODO
+    if (builtin.zig_backend == .stage2_x86_64) return error.SkipZigTest; // TODO
+    if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest; // TODO
+    if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest; // TODO
+    if (builtin.zig_backend == .stage2_sparc64) return error.SkipZigTest; // TODO
+
     try expect(comptime x: {
         break :x ~@as(u128, 0x55555555_55555555_55555555_55555555) == 0xaaaaaaaa_aaaaaaaa_aaaaaaaa_aaaaaaaa;
     });