1 files changed, 4 insertions, 0 deletions
diff --git a/compiler/rustc_mir/src/lib.rs b/compiler/rustc_mir/src/lib.rs
index 251037792c9..504c4ecd85c 100644
--- a/compiler/rustc_mir/src/lib.rs
+++ b/compiler/rustc_mir/src/lib.rs
@@ -60,4 +60,8 @@ pub fn provide(providers: &mut Providers) {
         let (param_env, value) = param_env_and_value.into_parts();
         const_eval::destructure_const(tcx, param_env, value)
     };
+    providers.deref_const = |tcx, param_env_and_value| {
+        let (param_env, value) = param_env_and_value.into_parts();
+        const_eval::deref_const(tcx, param_env, value)
+    };
 }