diff --git a/kernel/ptrace.c b/kernel/ptrace.c
index 2341efe7fe026f496095c4a9c1526a69cad3849a..c79b91d09e35a700374bedf3c9e9e815f378aa8a 100644
--- a/kernel/ptrace.c
+++ b/kernel/ptrace.c
@@ -681,7 +681,7 @@ static int ptrace_peek_siginfo(struct task_struct *child,
 			break;
 
 #ifdef CONFIG_COMPAT
-		if (unlikely(is_compat_task())) {
+		if (unlikely(in_compat_syscall())) {
 			compat_siginfo_t __user *uinfo = compat_ptr(data);
 
 			if (copy_siginfo_to_user32(uinfo, &info) ||