2 files changed, 6 insertions, 0 deletions

diff --git a/crates/ra_hir_def/src/adt.rs b/crates/ra_hir_def/src/adt.rs
index 71014826e..0091bfbc3 100644
--- a/crates/ra_hir_def/src/adt.rs
+++ b/crates/ra_hir_def/src/adt.rs
@@ -150,6 +150,11 @@ impl HasChildSource for VariantId {
                 src.map(|map| map[it.local_id].kind())
             }
             VariantId::StructId(it) => it.source(db).map(|it| it.kind()),
+            VariantId::UnionId(it) => it.source(db).map(|it| {
+                it.record_field_def_list()
+                    .map(ast::StructKind::Record)
+                    .unwrap_or(ast::StructKind::Unit)
+            }),
         };
         let mut trace = Trace::new_for_map();
         lower_struct(&mut trace, &src.value);
diff --git a/crates/ra_hir_def/src/lib.rs b/crates/ra_hir_def/src/lib.rs
index 5f11be114..a88a78b38 100644
--- a/crates/ra_hir_def/src/lib.rs
+++ b/crates/ra_hir_def/src/lib.rs
@@ -431,6 +431,7 @@ impl_froms!(
 pub enum VariantId {
     EnumVariantId(EnumVariantId),
     StructId(StructId),
+    UnionId(UnionId),
 }
 impl_froms!(VariantId: EnumVariantId, StructId);