diff --git a/src/tools/rust-analyzer/crates/hir-def/src/lower.rs b/src/tools/rust-analyzer/crates/hir-def/src/lower.rs
index e2f6cffa2f79..ecd8d79f20be 100644
--- a/src/tools/rust-analyzer/crates/hir-def/src/lower.rs
+++ b/src/tools/rust-analyzer/crates/hir-def/src/lower.rs
@@ -65,6 +65,6 @@ impl<'a> LowerCtx<'a> {
     }
 
     pub fn take_impl_traits_bounds(&self) -> Vec<Vec<Interned<TypeBound>>> {
-        self.impl_trait_bounds.borrow_mut().drain(..).collect()
+        self.impl_trait_bounds.take()
     }
 }