1 files changed, 1 insertions, 1 deletions

diff --git a/crates/hir_def/src/item_tree.rs b/crates/hir_def/src/item_tree.rs
index c017b352d..c6ada271e 100644
--- a/crates/hir_def/src/item_tree.rs
+++ b/crates/hir_def/src/item_tree.rs
@@ -255,7 +255,7 @@ impl GenericParamsStorage {
 }
 
 static EMPTY_GENERICS: GenericParams =
-    GenericParams { types: Arena::new(), where_predicates: Vec::new() };
+    GenericParams { types: Arena::new(), lifetimes: Arena::new(), where_predicates: Vec::new() };
 
 #[derive(Default, Debug, Eq, PartialEq)]
 struct ItemTreeData {