diff --git a/crates/hir_ty/src/lower.rs b/crates/hir_ty/src/lower.rs
index 5a769fa6ac25..ff795377a82c 100644
--- a/crates/hir_ty/src/lower.rs
+++ b/crates/hir_ty/src/lower.rs
@@ -200,7 +200,8 @@ impl<'a> TyLoweringContext<'a> {
                     )
                 });
                 let bounds = crate::make_only_type_binders(1, bounds);
-                TyKind::Dyn(DynTy { bounds }).intern(&Interner)
+                TyKind::Dyn(DynTy { bounds, lifetime: LifetimeData::Static.intern(&Interner) })
+                    .intern(&Interner)
             }
             TypeRef::ImplTrait(bounds) => {
                 match self.impl_trait_mode {
@@ -392,6 +393,7 @@ impl<'a> TyLoweringContext<'a> {
                                 ))),
                             ),
                         ),
+                        lifetime: LifetimeData::Static.intern(&Interner),
                     };
                     TyKind::Dyn(dyn_ty).intern(&Interner)
                 };
diff --git a/crates/hir_ty/src/traits/chalk/mapping.rs b/crates/hir_ty/src/traits/chalk/mapping.rs
index 26f8fdbdc323..791f342a14de 100644
--- a/crates/hir_ty/src/traits/chalk/mapping.rs
+++ b/crates/hir_ty/src/traits/chalk/mapping.rs
@@ -149,6 +149,7 @@ impl ToChalk for Ty {
                         where_clauses.bounds.binders.clone(),
                         crate::QuantifiedWhereClauses::from_iter(&Interner, bounds),
                     ),
+                    lifetime: LifetimeData::Static.intern(&Interner),
                 })
             }
 
diff --git a/crates/hir_ty/src/types.rs b/crates/hir_ty/src/types.rs
index c984a31c851e..844e57896906 100644
--- a/crates/hir_ty/src/types.rs
+++ b/crates/hir_ty/src/types.rs
@@ -40,6 +40,7 @@ impl ProjectionTy {
 pub struct DynTy {
     /// The unknown self type.
     pub bounds: Binders<QuantifiedWhereClauses>,
+    pub lifetime: Lifetime,
 }
 
 #[derive(Clone, PartialEq, Eq, Debug, Hash)]