diff --git a/Dockerfile.qemu b/Dockerfile.qemu
index 49408350b..32cc12a30 100644
--- a/Dockerfile.qemu
+++ b/Dockerfile.qemu
@@ -1,8 +1,6 @@
 FROM justincormack/alpine-qemu
 
-COPY alpine/initrd.img .
+COPY alpine/initrd.img.gz .
 COPY alpine/kernel/vmlinuz64 .
 
-RUN gzip -9 initrd.img
-
-ENTRYPOINT [ "qemu-system-x86_64", "-serial", "stdio", "-kernel", "vmlinuz64", "-initrd", "initrd.img.gz", "-m", "512", "-append", "earlyprintk=serial console=ttyS0 noapic", "-vnc", "none" ]
+ENTRYPOINT [ "qemu-system-x86_64", "-serial", "stdio", "-kernel", "vmlinuz64", "-initrd", "initrd.img.gz", "-m", "1024", "-append", "earlyprintk=serial console=ttyS0 noapic", "-vnc", "none" ]