diff --git a/reset.sh b/reset.sh
index 65093b6..edbac04 100755
--- a/reset.sh
+++ b/reset.sh
@@ -3,3 +3,4 @@ set -e
 
 dd if=/dev/zero of=/dev/vda bs=1M count=100
 dd if=/dev/zero of=/dev/vdb bs=1M count=100
+sync