1 files changed, 7 insertions, 2 deletions

diff --git a/crates/ra_hir_def/src/nameres.rs b/crates/ra_hir_def/src/nameres.rs
index 81eac52ad..03515309e 100644
--- a/crates/ra_hir_def/src/nameres.rs
+++ b/crates/ra_hir_def/src/nameres.rs
@@ -177,8 +177,13 @@ pub struct ModuleData {
 
 impl CrateDefMap {
     pub(crate) fn crate_def_map_query(db: &impl DefDatabase, krate: CrateId) -> Arc<CrateDefMap> {
-        let _p = profile("crate_def_map_query")
-            .detail(|| db.crate_graph()[krate].display_name.clone().unwrap_or_default());
+        let _p = profile("crate_def_map_query").detail(|| {
+            db.crate_graph()[krate]
+                .display_name
+                .as_ref()
+                .map(ToString::to_string)
+                .unwrap_or_default()
+        });
         let def_map = {
             let edition = db.crate_graph()[krate].edition;
             let mut modules: Arena<LocalModuleId, ModuleData> = Arena::default();