diff --git a/Kernel/TTY/SlavePTY.cpp b/Kernel/TTY/SlavePTY.cpp
index e2b0921d514..7d8550df3b8 100644
--- a/Kernel/TTY/SlavePTY.cpp
+++ b/Kernel/TTY/SlavePTY.cpp
@@ -35,9 +35,9 @@ bool SlavePTY::unref() const
     return did_hit_zero;
 }
 
-SlavePTY::SlavePTY(MasterPTY& master, unsigned index)
+SlavePTY::SlavePTY(NonnullRefPtr<MasterPTY> master, unsigned index)
     : TTY(201, index)
-    , m_master(master)
+    , m_master(move(master))
     , m_index(index)
 {
     auto& process = Process::current();
diff --git a/Kernel/TTY/SlavePTY.h b/Kernel/TTY/SlavePTY.h
index 585c2f11a2b..7161fc9082b 100644
--- a/Kernel/TTY/SlavePTY.h
+++ b/Kernel/TTY/SlavePTY.h
@@ -42,9 +42,9 @@ private:
     virtual ErrorOr<void> close() override;
 
     friend class MasterPTY;
-    SlavePTY(MasterPTY&, unsigned index);
+    SlavePTY(NonnullRefPtr<MasterPTY>, unsigned index);
 
-    LockRefPtr<MasterPTY> m_master;
+    NonnullRefPtr<MasterPTY> const m_master;
     time_t m_time_of_last_write { 0 };
     unsigned m_index { 0 };