diff --git a/include/sys/debug.h b/include/sys/debug.h
index fa285bf..45b215d 100644
--- a/include/sys/debug.h
+++ b/include/sys/debug.h
@@ -116,12 +116,12 @@ struct __dbg_event {
 	uint64_t        evtkey;
 	uint64_t        evtqpc;
 
-	pid_t           cpid;
-	pid_t           ctid;
-
 	pid_t           syspid;
 	pid_t           systid;
 
+	pid_t           child_syspid;
+	pid_t           child_systid;
+
 	mcontext_t *    thread_context;
 	siginfo_t *     thread_siginfo;