diff --git a/src/test/run-pass/epoch-gate-feature.rs b/src/test/run-pass/epoch-gate-feature.rs
index f3d8f216e1132..e3cd1edd20987 100644
--- a/src/test/run-pass/epoch-gate-feature.rs
+++ b/src/test/run-pass/epoch-gate-feature.rs
@@ -11,7 +11,7 @@
 // Checks if the correct registers are being used to pass arguments
 // when the sysv64 ABI is specified.
 
-// compile-flags: -Zedition=2018
+#![feature(rust_2018_preview)]
 
 pub trait Foo {}