diff --git a/compiler/rustc/src/main.rs b/compiler/rustc/src/main.rs
index 7ba58406ef1..29766fc9d87 100644
--- a/compiler/rustc/src/main.rs
+++ b/compiler/rustc/src/main.rs
@@ -34,7 +34,7 @@
 
 fn main() {
     // See the comment at the top of this file for an explanation of this.
-    #[cfg(feature = "jemalloc-sys")]
+    #[cfg(feature = "jemalloc")]
     {
         use std::os::raw::{c_int, c_void};