diff --git a/ntoskrnl/cc/pin.c b/ntoskrnl/cc/pin.c
index 3843cb26938..aba97049f19 100644
--- a/ntoskrnl/cc/pin.c
+++ b/ntoskrnl/cc/pin.c
@@ -186,7 +186,11 @@ CcPinMappedData (
 
     SharedCacheMap = FileObject->SectionObjectPointer->SharedCacheMap;
     ASSERT(SharedCacheMap);
-    ASSERT(SharedCacheMap->PinAccess);
+    if (!SharedCacheMap->PinAccess)
+    {
+        DPRINT1("FIXME: Pinning a file with no pin access!\n");
+        return FALSE;
+    }
 
     iBcb = *Bcb;
     ASSERT(iBcb->Pinned == FALSE);