diff --git a/Kernel/Process.cpp b/Kernel/Process.cpp
index 7473ca9a6c..0caaa56df4 100644
--- a/Kernel/Process.cpp
+++ b/Kernel/Process.cpp
@@ -238,7 +238,6 @@ Process::Process(RefPtr<Thread>& first_thread, const String& name, uid_t uid, gi
     , m_executable(move(executable))
     , m_cwd(move(cwd))
     , m_tty(tty)
-    , m_ppid(ppid)
     , m_wait_block_condition(*this)
 {
     m_protected_data = KBuffer::try_create_with_size(sizeof(ProtectedData));
@@ -247,6 +246,7 @@ Process::Process(RefPtr<Thread>& first_thread, const String& name, uid_t uid, gi
     {
         MutableProtectedData protected_data { *this };
         protected_data->pid = allocate_pid();
+        protected_data->ppid = ppid;
         protected_data->uid = uid;
         protected_data->gid = gid;
         protected_data->euid = uid;
@@ -518,7 +518,7 @@ void Process::finalize()
 
     {
         // FIXME: PID/TID BUG
-        if (auto parent_thread = Thread::from_tid(m_ppid.value())) {
+        if (auto parent_thread = Thread::from_tid(ppid().value())) {
             if (!(parent_thread->m_signal_action_data[SIGCHLD].flags & SA_NOCLDWAIT))
                 parent_thread->send_signal(SIGCHLD, this);
         }
diff --git a/Kernel/Process.h b/Kernel/Process.h
index c2b4511e1f..ddfdce1fec 100644
--- a/Kernel/Process.h
+++ b/Kernel/Process.h
@@ -114,6 +114,7 @@ class Process
 
     struct ProtectedData {
         ProcessID pid { 0 };
+        ProcessID ppid { 0 };
         SessionID sid { 0 };
         uid_t euid { 0 };
         gid_t egid { 0 };
@@ -209,7 +210,7 @@ public:
     gid_t gid() const { return protected_data().gid; }
     uid_t suid() const { return protected_data().suid; }
     gid_t sgid() const { return protected_data().sgid; }
-    ProcessID ppid() const { return m_ppid; }
+    ProcessID ppid() const { return protected_data().ppid; }
 
     bool is_dumpable() const { return m_dumpable; }
     void set_dumpable(bool dumpable) { m_dumpable = dumpable; }
@@ -587,7 +588,6 @@ private:
 
     RefPtr<TTY> m_tty;
 
-    ProcessID m_ppid { 0 };
     mode_t m_umask { 022 };
 
     bool m_dumpable { true };
diff --git a/Kernel/Syscalls/disown.cpp b/Kernel/Syscalls/disown.cpp
index 0a0408dc39..8d9ee0754f 100644
--- a/Kernel/Syscalls/disown.cpp
+++ b/Kernel/Syscalls/disown.cpp
@@ -36,7 +36,7 @@ KResultOr<int> Process::sys$disown(ProcessID pid)
         return ESRCH;
     if (process->ppid() != this->pid())
         return ECHILD;
-    process->m_ppid = 0;
+    MutableProtectedData(*this)->ppid = 0;
     process->disowned_by_waiter(*this);
     return 0;
 }
diff --git a/Kernel/Syscalls/process.cpp b/Kernel/Syscalls/process.cpp
index e604641965..06301d94f6 100644
--- a/Kernel/Syscalls/process.cpp
+++ b/Kernel/Syscalls/process.cpp
@@ -38,7 +38,7 @@ KResultOr<pid_t> Process::sys$getpid()
 KResultOr<pid_t> Process::sys$getppid()
 {
     REQUIRE_PROMISE(stdio);
-    return m_ppid.value();
+    return protected_data().ppid.value();
 }
 
 KResultOr<int> Process::sys$get_process_name(Userspace<char*> buffer, size_t buffer_size)