diff --git a/library/test/Cargo.toml b/library/test/Cargo.toml
index 3d6910b107dd5..d5804cc3dd862 100644
--- a/library/test/Cargo.toml
+++ b/library/test/Cargo.toml
@@ -26,6 +26,8 @@ default = ["std_detect_file_io", "std_detect_dlsym_getauxval", "panic-unwind"]
 backtrace = ["std/backtrace"]
 compiler-builtins-c = ["std/compiler-builtins-c"]
 compiler-builtins-mem = ["std/compiler-builtins-mem"]
+compiler-builtins-asm = ["std/compiler-builtins-asm"]
+compiler-builtins-mangled-names = ["std/compiler-builtins-mangled-names"]
 llvm-libunwind = ["std/llvm-libunwind"]
 system-llvm-libunwind = ["std/system-llvm-libunwind"]
 panic-unwind = ["std/panic_unwind"]