Remove constexpr
diff --git a/src/data.rs b/src/data.rs
index ef6490e..937de27 100644
--- a/src/data.rs
+++ b/src/data.rs
@@ -14,7 +14,7 @@
         pub data: VariantData,
 
         /// Explicit discriminant, e.g. `Foo = 1`
-        pub discriminant: Option<ConstExpr>,
+        pub discriminant: Option<Expr>,
 
         pub eq_token: Option<tokens::Eq>,
     }