diff --git a/crates/ra_hir/src/code_model.rs b/crates/ra_hir/src/code_model.rs
index 35e1f752be..ecf883272d 100644
--- a/crates/ra_hir/src/code_model.rs
+++ b/crates/ra_hir/src/code_model.rs
@@ -754,7 +754,7 @@ impl ImplBlock {
         let environment = TraitEnvironment::lower(db, &resolver);
         let ty = Ty::from_hir(db, &resolver, &impl_data.target_type);
         Type {
-            krate: self.id.lookup(db).container.krate,
+            krate: self.id.lookup(db).container.module(db).krate,
             ty: InEnvironment { value: ty, environment },
         }
     }
@@ -768,7 +768,7 @@ impl ImplBlock {
     }
 
     pub fn module(&self, db: &impl DefDatabase) -> Module {
-        self.id.lookup(db).container.into()
+        self.id.lookup(db).container.module(db).into()
     }
 
     pub fn krate(&self, db: &impl DefDatabase) -> Crate {
diff --git a/crates/ra_hir_def/src/lib.rs b/crates/ra_hir_def/src/lib.rs
index faeb2fc8ac..d11b573e5f 100644
--- a/crates/ra_hir_def/src/lib.rs
+++ b/crates/ra_hir_def/src/lib.rs
@@ -160,27 +160,8 @@ impl_intern!(TypeAliasId, TypeAliasLoc, intern_type_alias, lookup_intern_type_al
 
 #[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
 pub struct ImplId(salsa::InternId);
-impl_intern_key!(ImplId);
-
-#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct ImplLoc {
-    pub container: ModuleId,
-    pub ast_id: AstId<ast::ImplBlock>,
-}
-
-impl Intern for ImplLoc {
-    type ID = ImplId;
-    fn intern(self, db: &impl db::DefDatabase) -> ImplId {
-        db.intern_impl(self)
-    }
-}
-
-impl Lookup for ImplId {
-    type Data = ImplLoc;
-    fn lookup(&self, db: &impl db::DefDatabase) -> ImplLoc {
-        db.lookup_intern_impl(*self)
-    }
-}
+type ImplLoc = ItemLoc<ast::ImplBlock>;
+impl_intern!(ImplId, ImplLoc, intern_impl, lookup_intern_impl);
 
 #[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
 pub struct TypeParamId {
@@ -379,7 +360,7 @@ impl HasModule for AssocContainerId {
     fn module(&self, db: &impl db::DefDatabase) -> ModuleId {
         match *self {
             AssocContainerId::ContainerId(it) => it.module(db),
-            AssocContainerId::ImplId(it) => it.lookup(db).container,
+            AssocContainerId::ImplId(it) => it.lookup(db).container.module(db),
             AssocContainerId::TraitId(it) => it.lookup(db).container.module(db),
         }
     }
@@ -431,7 +412,7 @@ impl HasModule for GenericDefId {
             GenericDefId::AdtId(it) => it.module(db),
             GenericDefId::TraitId(it) => it.lookup(db).container.module(db),
             GenericDefId::TypeAliasId(it) => it.lookup(db).module(db),
-            GenericDefId::ImplId(it) => it.lookup(db).container,
+            GenericDefId::ImplId(it) => it.lookup(db).container.module(db),
             GenericDefId::EnumVariantId(it) => it.parent.lookup(db).container.module(db),
             GenericDefId::ConstId(it) => it.lookup(db).module(db),
         }
diff --git a/crates/ra_hir_def/src/nameres/collector.rs b/crates/ra_hir_def/src/nameres/collector.rs
index a1ea130e08..e68bf48688 100644
--- a/crates/ra_hir_def/src/nameres/collector.rs
+++ b/crates/ra_hir_def/src/nameres/collector.rs
@@ -661,9 +661,10 @@ where
                             krate: self.def_collector.def_map.krate,
                             local_id: self.module_id,
                         };
+                        let container = ContainerId::ModuleId(module);
                         let ast_id = self.raw_items[imp].ast_id;
                         let impl_id =
-                            ImplLoc { container: module, ast_id: AstId::new(self.file_id, ast_id) }
+                            ImplLoc { container, ast_id: AstId::new(self.file_id, ast_id) }
                                 .intern(self.def_collector.db);
                         self.def_collector.def_map.modules[self.module_id].impls.push(impl_id)
                     }
diff --git a/crates/ra_hir_ty/src/method_resolution.rs b/crates/ra_hir_ty/src/method_resolution.rs
index 1b2f4014c6..92fb4c0817 100644
--- a/crates/ra_hir_ty/src/method_resolution.rs
+++ b/crates/ra_hir_ty/src/method_resolution.rs
@@ -134,7 +134,7 @@ impl Ty {
                 LangItemTarget::ImplBlockId(it) => Some(it),
                 _ => None,
             })
-            .map(|it| it.lookup(db).container.krate)
+            .map(|it| it.lookup(db).container.module(db).krate)
             .collect();
         Some(res)
     }
diff --git a/crates/ra_hir_ty/src/traits/chalk.rs b/crates/ra_hir_ty/src/traits/chalk.rs
index dd4fa9664a..5eb032d86a 100644
--- a/crates/ra_hir_ty/src/traits/chalk.rs
+++ b/crates/ra_hir_ty/src/traits/chalk.rs
@@ -673,7 +673,7 @@ fn impl_block_datum(
     let bound_vars = Substs::bound_vars(&generic_params);
     let trait_ref = trait_ref.subst(&bound_vars);
     let trait_ = trait_ref.trait_;
-    let impl_type = if impl_id.lookup(db).container.krate == krate {
+    let impl_type = if impl_id.lookup(db).container.module(db).krate == krate {
         chalk_rust_ir::ImplType::Local
     } else {
         chalk_rust_ir::ImplType::External