diff --git a/reactos/ntoskrnl/mm/mdlsup.c b/reactos/ntoskrnl/mm/mdlsup.c
index 396bbd5b004..7cb7bfd18cc 100644
--- a/reactos/ntoskrnl/mm/mdlsup.c
+++ b/reactos/ntoskrnl/mm/mdlsup.c
@@ -599,7 +599,7 @@ MmAllocatePagesForMdl(IN PHYSICAL_ADDRESS LowAddress,
     }
     
     /* If nothing was allocated, fail */
-    if (NumberOfPagesAllocated)
+    if (NumberOfPagesWanted)
     {
         /* Free our MDL */
         ExFreePool(Mdl);