1 files changed, 2 insertions, 0 deletions

diff --git a/crates/hir_def/src/expr.rs b/crates/hir_def/src/expr.rs
index e862c2080..e5d740a36 100644
--- a/crates/hir_def/src/expr.rs
+++ b/crates/hir_def/src/expr.rs
@@ -398,6 +398,7 @@ pub enum Pat {
     Bind { mode: BindingAnnotation, name: Name, subpat: Option<PatId> },
     TupleStruct { path: Option<Path>, args: Vec<PatId>, ellipsis: Option<usize> },
     Ref { pat: PatId, mutability: Mutability },
+    Box { inner: PatId },
 }
 
 impl Pat {
@@ -418,6 +419,7 @@ impl Pat {
             Pat::Record { args, .. } => {
                 args.iter().map(|f| f.pat).for_each(f);
             }
+            Pat::Box { inner } => f(*inner),
         }
     }
 }