diff --git a/compiler/rustc_middle/src/query/mod.rs b/compiler/rustc_middle/src/query/mod.rs
index 4cebe416354a9..7aa9282b9bece 100644
--- a/compiler/rustc_middle/src/query/mod.rs
+++ b/compiler/rustc_middle/src/query/mod.rs
@@ -1541,7 +1541,6 @@ rustc_queries! {
     query upstream_monomorphizations_for(def_id: DefId)
         -> Option<&'tcx FxHashMap<SubstsRef<'tcx>, CrateNum>>
     {
-        arena_cache
         desc { |tcx|
             "collecting available upstream monomorphizations for `{}`",
             tcx.def_path_str(def_id),