diff --git a/ntoskrnl/mm/ARM3/pfnlist.c b/ntoskrnl/mm/ARM3/pfnlist.c
index f79a5013250..eac3a043418 100644
--- a/ntoskrnl/mm/ARM3/pfnlist.c
+++ b/ntoskrnl/mm/ARM3/pfnlist.c
@@ -704,6 +704,7 @@ MiInsertPageInFreeList(IN PFN_NUMBER PageFrameIndex)
     if ((ListHead->Total >= 8) && !(MmZeroingPageThreadActive))
     {
         /* Set the event */
+        MmZeroingPageThreadActive = TRUE;
         KeSetEvent(&MmZeroingPageEvent, IO_NO_INCREMENT, FALSE);
     }
 
diff --git a/ntoskrnl/mm/ARM3/zeropage.c b/ntoskrnl/mm/ARM3/zeropage.c
index e2b96ca56a8..6d859f6806f 100644
--- a/ntoskrnl/mm/ARM3/zeropage.c
+++ b/ntoskrnl/mm/ARM3/zeropage.c
@@ -68,7 +68,6 @@ MmZeroPageThread(VOID)
                                  NULL,
                                  NULL);
         OldIrql = MiAcquirePfnLock();
-        MmZeroingPageThreadActive = TRUE;
 
         while (TRUE)
         {