diff --git a/reactos/hal/hal/hal.def b/reactos/hal/hal/hal.def
index 0076c3eadaa..58ba18bfa93 100644
--- a/reactos/hal/hal/hal.def
+++ b/reactos/hal/hal/hal.def
@@ -72,6 +72,7 @@ KdPortEnableInterrupts@0
 KeAcquireSpinLock@8
 @KeAcquireInStackQueuedSpinLock@8
 @KeAcquireSpinLockRaiseToSynch@4
+@KeAcquireQueuedSpinLock@4
 KeGetCurrentIrql@0
 KeFlushWriteBuffer@0
 KeLowerIrql@4
@@ -81,6 +82,7 @@ KeRaiseIrqlToDpcLevel@0
 KeRaiseIrqlToSynchLevel@0
 @KeReleaseInStackQueuedSpinLock@4
 KeReleaseSpinLock@8
+@KeReleaseQueuedSpinLock@8
 KeStallExecutionProcessor@4
 @KfAcquireSpinLock@4
 @KfLowerIrql@4
diff --git a/reactos/hal/halx86/mp/spinlock.c b/reactos/hal/halx86/mp/spinlock.c
index dab1c934ae2..e7b18f72a44 100644
--- a/reactos/hal/halx86/mp/spinlock.c
+++ b/reactos/hal/halx86/mp/spinlock.c
@@ -130,4 +130,26 @@ KeReleaseInStackQueuedSpinLock(
    UNIMPLEMENTED;
 }
 
+/*
+ * @unimplemented
+ */
+KIRQL
+FASTCALL
+KeAcquireQueuedSpinLock(IN PKLOCK_QUEUE_HANDLE LockHandle)
+{
+   UNIMPLEMENTED;
+   return 0;
+}
+
+/*
+ * @unimplemented
+ */
+VOID
+FASTCALL
+KeReleaseQueuedSpinLock(IN PKLOCK_QUEUE_HANDLE LockHandle,
+                        IN KIRQL OldIrql)
+{
+   UNIMPLEMENTED;
+}
+
 /* EOF */