diff --git a/lib/Common/Memory/PageAllocator.cpp b/lib/Common/Memory/PageAllocator.cpp
index 6be426ea568..af93aa8ea4d 100644
--- a/lib/Common/Memory/PageAllocator.cpp
+++ b/lib/Common/Memory/PageAllocator.cpp
@@ -2519,7 +2519,8 @@ PageAllocatorBase<TVirtualAlloc, TSegment, TPageSegment>::Check()
 #if ENABLE_BACKGROUND_PAGE_ZEROING
     if (CONFIG_FLAG(EnableBGFreeZero))
     {
-        Assert(!this->HasZeroQueuedPages());
+        // We may have backed-off from the idle decommit on the background thread.
+        Assert(!this->HasZeroQueuedPages() || this->waitingToEnterIdleDecommit);
     }
 #endif
     size_t currentFreePageCount = 0;