diff --git a/libc/kernel/uapi/linux/ptrace.h b/libc/kernel/uapi/linux/ptrace.h
index a1528db..5de0998 100644
--- a/libc/kernel/uapi/linux/ptrace.h
+++ b/libc/kernel/uapi/linux/ptrace.h
@@ -62,7 +62,8 @@
 #define PTRACE_SYSCALL_INFO_SECCOMP 3
 struct ptrace_syscall_info {
   __u8 op;
-  __u32 arch __attribute__((__aligned__(sizeof(__u32))));
+  __u8 pad[3];
+  __u32 arch;
   __u64 instruction_pointer;
   __u64 stack_pointer;
   union {