diff --git a/src/liballoc_jemalloc/build.rs b/src/liballoc_jemalloc/build.rs
index 41193f6a41f..2a8af60be00 100644
--- a/src/liballoc_jemalloc/build.rs
+++ b/src/liballoc_jemalloc/build.rs
@@ -111,7 +111,7 @@ fn main() {
         cmd.arg("--with-jemalloc-prefix=je_");
     }
 
-    if cfg!(feature = "debug-jemalloc") {
+    if cfg!(feature = "debug") {
         cmd.arg("--enable-debug");
     }