diff --git a/BUILD.sh b/BUILD.sh
index b635b74..a56522b 100755
--- a/BUILD.sh
+++ b/BUILD.sh
@@ -59,6 +59,8 @@ docker build \
 	 --output type=local,dest=./data \
 	 $VM_OPTS .
 
+fallocate -d ./data/vm.raw
+
 echo "BUILDING HYPERVISOR IMAGE"
 docker build -t "$IMAGE_NAME:$IMAGE_TAG" -t "$IMAGE_NAME:latest" \
 	 -f hypervisor.Dockerfile $HY_OPTS .