diff --git a/dlls/ntoskrnl.exe/ntoskrnl.c b/dlls/ntoskrnl.exe/ntoskrnl.c
index a2cbb742761..507ffdd6708 100644
--- a/dlls/ntoskrnl.exe/ntoskrnl.c
+++ b/dlls/ntoskrnl.exe/ntoskrnl.c
@@ -4,6 +4,7 @@
  * Copyright (C) 2007 Alexandre Julliard
  * Copyright (C) 2010 Damjan Jovanovic
  * Copyright (C) 2016 Sebastian Lackner
+ * Copyright (C) 2016 CodeWeavers, Aric Stewart
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
@@ -2788,3 +2789,12 @@ done:
     CloseServiceHandle( service_handle );
     return status;
 }
+
+
+/***********************************************************************
+ *           IoInvalidateDeviceRelations (NTOSKRNL.EXE.@)
+ */
+void WINAPI IoInvalidateDeviceRelations( DEVICE_OBJECT *device_object, DEVICE_RELATION_TYPE type )
+{
+    FIXME( "(%p, %i): stub\n", device_object, type );
+}
diff --git a/dlls/ntoskrnl.exe/ntoskrnl.exe.spec b/dlls/ntoskrnl.exe/ntoskrnl.exe.spec
index 119d4067ab9..c94b902b989 100644
--- a/dlls/ntoskrnl.exe/ntoskrnl.exe.spec
+++ b/dlls/ntoskrnl.exe/ntoskrnl.exe.spec
@@ -400,7 +400,7 @@
 @ stdcall IoInitializeIrp(ptr long long)
 @ stdcall IoInitializeRemoveLockEx(ptr long long long long)
 @ stdcall IoInitializeTimer(ptr ptr ptr)
-@ stub IoInvalidateDeviceRelations
+@ stdcall IoInvalidateDeviceRelations(ptr long)
 @ stub IoInvalidateDeviceState
 @ stub IoIsFileOriginRemote
 @ stub IoIsOperationSynchronous
diff --git a/include/ddk/wdm.h b/include/ddk/wdm.h
index 1c00fda066d..918797ef096 100644
--- a/include/ddk/wdm.h
+++ b/include/ddk/wdm.h
@@ -1235,6 +1235,7 @@ PVOID     WINAPI IoGetDriverObjectExtension(PDRIVER_OBJECT,PVOID);
 PDEVICE_OBJECT WINAPI IoGetRelatedDeviceObject(PFILE_OBJECT);
 void      WINAPI IoInitializeIrp(IRP*,USHORT,CCHAR);
 VOID      WINAPI IoInitializeRemoveLockEx(PIO_REMOVE_LOCK,ULONG,ULONG,ULONG,ULONG);
+void      WINAPI IoInvalidateDeviceRelations(PDEVICE_OBJECT,DEVICE_RELATION_TYPE);
 NTSTATUS  WINAPI IoWMIRegistrationControl(PDEVICE_OBJECT,ULONG);
 
 PKTHREAD  WINAPI KeGetCurrentThread(void);