diff --git a/library/compiler-builtins/libm/crates/libm-bench/Cargo.toml b/library/compiler-builtins/libm/crates/libm-bench/Cargo.toml
index ba65dbd5fe69..b09db339b5b2 100644
--- a/library/compiler-builtins/libm/crates/libm-bench/Cargo.toml
+++ b/library/compiler-builtins/libm/crates/libm-bench/Cargo.toml
@@ -12,4 +12,4 @@ paste = "0.1.5"
 
 [features]
 default = []
-stable = [ "libm/stable" ]
+unstable = [ "libm/unstable" ]