diff --git a/example/alloc_system.rs b/example/alloc_system.rs
index 3deef419f42..56ff84e4bdf 100644
--- a/example/alloc_system.rs
+++ b/example/alloc_system.rs
@@ -12,7 +12,7 @@
               target_arch = "mips",
               target_arch = "mips32r6",
               target_arch = "powerpc",
-              target_arch = "csky"
+              target_arch = "csky",
               target_arch = "powerpc64"))]
 const MIN_ALIGN: usize = 8;
 #[cfg(any(target_arch = "x86_64",