diff --git a/modules/rpi-netboot.nix b/modules/rpi-netboot.nix
index 7222acf6..e03d6921 100644
--- a/modules/rpi-netboot.nix
+++ b/modules/rpi-netboot.nix
@@ -71,7 +71,7 @@
     cat << EOF > $out/config.txt
     kernel=kernel8.img
     initramfs initrd.img followkernel
-    gpu_mem=64
+    gpu_mem=256
     arm_64bit=1
     EOF
     echo "dwc_otg.lpm_enable=0 console=ttyAMA0,115200 kgdboc=ttyAMA0,115200 console=tty1 verbose init=${config.system.build.toplevel}/init" > $out/cmdline.txt