diff --git a/vhost/Cargo.toml b/vhost/Cargo.toml
index 4c15ad6c45..21ebe50626 100644
--- a/vhost/Cargo.toml
+++ b/vhost/Cargo.toml
@@ -2,6 +2,7 @@
 name = "vhost"
 version = "0.1.0"
 authors = ["The Chromium OS Authors"]
+edition = "2018"
 
 [dependencies]
 libc = "*"