diff --git a/test/embedded/lto-multiple-object-files.swift b/test/embedded/lto-multiple-object-files.swift
index d1fba776f58eb..edfec93b1f876 100644
--- a/test/embedded/lto-multiple-object-files.swift
+++ b/test/embedded/lto-multiple-object-files.swift
@@ -14,6 +14,7 @@
 
 // REQUIRES: swift_in_compiler
 // REQUIRES: executable_test
+// REQUIRES: optimized_stdlib
 // REQUIRES: OS=macosx
 
 // For LTO, the linker dlopen()'s the libLTO library, which is a scenario that