diff --git a/test/behavior/cast.zig b/test/behavior/cast.zig
index e35f04696a3d..0e45473aca5f 100644
--- a/test/behavior/cast.zig
+++ b/test/behavior/cast.zig
@@ -2035,6 +2035,8 @@ test "peer type resolution: tuple pointer and optional slice" {
     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
+    // Miscompilation on Intel's OpenCL CPU runtime.
+    if (builtin.zig_backend == .stage2_spirv64) return error.SkipZigTest; // flaky
 
     var a: ?[:0]const u8 = null;
     var b = &.{ @as(u8, 'x'), @as(u8, 'y'), @as(u8, 'z') };