diff --git a/src/sys/fsctl.c b/src/sys/fsctl.c
index 6bab9dd9..53efe8b5 100644
--- a/src/sys/fsctl.c
+++ b/src/sys/fsctl.c
@@ -244,7 +244,7 @@ static NTSTATUS FspFsvolFileSystemControlReparsePoint(
     else
     {
         if (0 == OutputBuffer || 0 == OutputBufferLength)
-            return STATUS_INVALID_PARAMETER;
+            return STATUS_INVALID_USER_BUFFER;
 
         /*
          * NtFsControlFile (IopXxxControlFile) will setup Irp->AssociatedIrp.SystemBuffer