diff --git a/ntoskrnl/mm/ARM3/procsup.c b/ntoskrnl/mm/ARM3/procsup.c
index 5924aa067f8..dd04b68fb83 100644
--- a/ntoskrnl/mm/ARM3/procsup.c
+++ b/ntoskrnl/mm/ARM3/procsup.c
@@ -1108,6 +1108,7 @@ MmInitializeHandBuiltProcess(IN PEPROCESS Process,
 
     /* Use idle process Working set */
     Process->Vm.VmWorkingSetList = PsGetCurrentProcess()->Vm.VmWorkingSetList;
+    Process->WorkingSetPage = PsGetCurrentProcess()->WorkingSetPage;
 
     /* Done */
     Process->HasAddressSpace = TRUE;//??