diff --git a/src/tools/remote-test-client/Cargo.toml b/src/tools/remote-test-client/Cargo.toml
index 54739101f1ef..1a4b24bd5b34 100644
--- a/src/tools/remote-test-client/Cargo.toml
+++ b/src/tools/remote-test-client/Cargo.toml
@@ -2,5 +2,6 @@
 name = "remote-test-client"
 version = "0.1.0"
 authors = ["The Rust Project Developers"]
+edition = "2018"
 
 [dependencies]