diff --git a/service/ptos/head/ps/thread.h b/service/ptos/head/ps/thread.h
index ee121a9..70abab0 100644
--- a/service/ptos/head/ps/thread.h
+++ b/service/ptos/head/ps/thread.h
@@ -22,10 +22,12 @@ struct _PROCESS;
  * processes.
  *
  * @Tid:        Thread ID
+ * @Parent:     Parent process
  * @ThreadLink: Thread queue link
  */
 typedef struct _THREAD {
     UQUAD Tid;
+    struct _PROCESS *Parent;
     TAILQ_ENTRY(_THREAD) ThreadLink;
 } THREAD;
 
diff --git a/service/ptos/ps/thread.c b/service/ptos/ps/thread.c
index 9e30397..1cf3abb 100644
--- a/service/ptos/ps/thread.c
+++ b/service/ptos/ps/thread.c
@@ -34,6 +34,7 @@ PsCreateThread(struct _PROCESS *Parent, ULONG Flags, THREAD **Result)
     }
 
     Thread->Tid = AtomicIncQuad(&NextThreadTid);
+    Thread->Parent = Parent;
     *Result = Thread;
     return STATUS_SUCCESS;
 }