diff --git a/reactos/drivers/filesystems/ntfs/volinfo.c b/reactos/drivers/filesystems/ntfs/volinfo.c
index ea45bbb7ba1..a425d82791f 100644
--- a/reactos/drivers/filesystems/ntfs/volinfo.c
+++ b/reactos/drivers/filesystems/ntfs/volinfo.c
@@ -181,6 +181,7 @@ NtfsQueryVolumeInformation(PDEVICE_OBJECT DeviceObject,
   FsInformationClass = Stack->Parameters.QueryVolume.FsInformationClass;
   BufferLength = Stack->Parameters.QueryVolume.Length;
   SystemBuffer = Irp->AssociatedIrp.SystemBuffer;
+  RtlZeroMemory(SystemBuffer, BufferLength);
 
   DPRINT("FsInformationClass %d\n", FsInformationClass);
   DPRINT("SystemBuffer %p\n", SystemBuffer);