diff --git a/dlls/ntoskrnl.exe/ntoskrnl.c b/dlls/ntoskrnl.exe/ntoskrnl.c
index 4b8a0056a32..6287967c654 100644
--- a/dlls/ntoskrnl.exe/ntoskrnl.c
+++ b/dlls/ntoskrnl.exe/ntoskrnl.c
@@ -3240,5 +3240,14 @@ void WINAPI __regs_KeReleaseInStackQueuedSpinLock( KLOCK_QUEUE_HANDLE *handle )
 void WINAPI KeReleaseInStackQueuedSpinLock( KLOCK_QUEUE_HANDLE *handle )
 #endif
 {
-    FIXME( "stub: %p\n", handle);
+    FIXME( "stub: %p\n", handle );
+}
+
+/***********************************************************************
+ *           KeAcquireSpinLockRaiseToDpc (NTOSKRNL.EXE.@)
+ */
+KIRQL WINAPI KeAcquireSpinLockRaiseToDpc(KSPIN_LOCK *spinlock)
+{
+    FIXME( "stub: %p\n", spinlock );
+    return 0;
 }
diff --git a/dlls/ntoskrnl.exe/ntoskrnl.exe.spec b/dlls/ntoskrnl.exe/ntoskrnl.exe.spec
index 25649c9b3b6..aba5cb5a39c 100644
--- a/dlls/ntoskrnl.exe/ntoskrnl.exe.spec
+++ b/dlls/ntoskrnl.exe/ntoskrnl.exe.spec
@@ -510,6 +510,7 @@
 @ stdcall Ke386SetIoAccessMap(long ptr)
 @ stub KeAcquireInterruptSpinLock
 @ stub KeAcquireSpinLockAtDpcLevel
+@ stdcall -arch=x86_64 KeAcquireSpinLockRaiseToDpc(ptr)
 @ stub KeAddSystemServiceTable
 @ stub KeAreApcsDisabled
 @ stub KeAttachProcess