diff --git a/src/sys/ioctl.i b/src/sys/ioctl.i
index f56887ab..6538e2c8 100644
--- a/src/sys/ioctl.i
+++ b/src/sys/ioctl.i
@@ -185,7 +185,7 @@ SYM(FSCTL_PIPE_SET_CONNECTION_ATTRIBUTE)
 SYM(FSCTL_PIPE_GET_HANDLE_ATTRIBUTE)
 SYM(FSCTL_PIPE_SET_HANDLE_ATTRIBUTE)
 SYM(FSCTL_PIPE_FLUSH)
-SYM(FSCTL_PIPE_SET_CONTAINER_AWARE)
+//SYM(FSCTL_PIPE_SET_CONTAINER_AWARE)
 SYM(FSCTL_PIPE_INTERNAL_READ)
 SYM(FSCTL_PIPE_INTERNAL_WRITE)
 SYM(FSCTL_PIPE_INTERNAL_TRANSCEIVE)