diff --git a/conf/machine/raspberrypi2.conf b/conf/machine/raspberrypi2.conf
index d50ef70..3f13dc0 100644
--- a/conf/machine/raspberrypi2.conf
+++ b/conf/machine/raspberrypi2.conf
@@ -10,3 +10,5 @@ include conf/machine/include/rpi-base.inc
 SERIAL_CONSOLE = "115200 ttyAMA0"
 
 UBOOT_MACHINE = "rpi_2_config"
+VC4_CMA_SIZE ?= "cma-256"
+