diff --git a/reactos/ntoskrnl/mm/ARM3/section.c b/reactos/ntoskrnl/mm/ARM3/section.c
index 60b94aef693..727908f7356 100644
--- a/reactos/ntoskrnl/mm/ARM3/section.c
+++ b/reactos/ntoskrnl/mm/ARM3/section.c
@@ -3155,6 +3155,14 @@ MiDeleteARM3Section(PVOID ObjectBody)
     MiCheckControlArea(ControlArea, OldIrql);
 }
 
+ULONG
+NTAPI
+MmDoesFileHaveUserWritableReferences(IN PSECTION_OBJECT_POINTERS SectionPointer)
+{
+    UNIMPLEMENTED;
+    return 0;
+}
+
 /* SYSTEM CALLS ***************************************************************/
 
 NTSTATUS
diff --git a/reactos/ntoskrnl/ntoskrnl.spec b/reactos/ntoskrnl/ntoskrnl.spec
index 1b71e74f586..299707b86d8 100644
--- a/reactos/ntoskrnl/ntoskrnl.spec
+++ b/reactos/ntoskrnl/ntoskrnl.spec
@@ -766,6 +766,7 @@
 @ stdcall MmCreateMirror()
 @ stdcall MmCreateSection(ptr long ptr ptr long long ptr ptr)
 @ stdcall MmDisableModifiedWriteOfSection(long)
+@ stdcall MmDoesFileHaveUserWritableReferences(ptr)
 @ stdcall MmFlushImageSection(ptr long)
 @ stdcall MmForceSectionClosed(ptr long)
 @ stdcall MmFreeContiguousMemory(ptr)