diff --git a/library/compiler-builtins/src/macros.rs b/library/compiler-builtins/src/macros.rs
index 32c615f010e4..89cd6468999b 100644
--- a/library/compiler-builtins/src/macros.rs
+++ b/library/compiler-builtins/src/macros.rs
@@ -147,7 +147,6 @@ macro_rules! intrinsics {
         $($rest:tt)*
     ) => (
         #[cfg($name = "optimized-c")]
-        #[cfg_attr(all(not(windows), not(target_vendor = "apple")), linkage = "weak")]
         pub $(unsafe $($empty)? )? extern $abi fn $name( $($argname: $ty),* ) $(-> $ret)? {
             extern $abi {
                 fn $name($($argname: $ty),*) $(-> $ret)?;