diff --git a/compiler/rustc_const_eval/src/interpret/intrinsics.rs b/compiler/rustc_const_eval/src/interpret/intrinsics.rs
index e886fd23ff5..3b58f66353b 100644
--- a/compiler/rustc_const_eval/src/interpret/intrinsics.rs
+++ b/compiler/rustc_const_eval/src/interpret/intrinsics.rs
@@ -221,8 +221,8 @@ pub fn emulate_intrinsic(
             sym::discriminant_value => {
                 let place = self.deref_pointer(&args[0])?;
                 let variant = self.read_discriminant(&place)?;
-                let discr = self.discriminant_for_variant(place.layout, variant)?.to_scalar();
-                self.write_scalar(discr, dest)?;
+                let discr = self.discriminant_for_variant(place.layout, variant)?;
+                self.write_immediate(*discr, dest)?;
             }
             sym::exact_div => {
                 let l = self.read_immediate(&args[0])?;