diff --git a/recipes-extended/images/xtf-image.bb b/recipes-extended/images/xtf-image.bb
index 21c0e7f6..b73e4a59 100644
--- a/recipes-extended/images/xtf-image.bb
+++ b/recipes-extended/images/xtf-image.bb
@@ -17,8 +17,3 @@ IMAGE_NAME="xtf"
 IMAGE_INSTALL:append = " xtf"
 
 QB_DEFAULT_FSTYPE_x86-64 = "wic"
-
-# Set the dom0 memory level lower than that assigned to qemu so that Xen has
-# some available memory for allocating to the XTF microkernel guests to run:
-QB_MEM = "-m 400"
-SYSLINUX_XEN_ARGS:append = " dom0_mem=256M"