1 files changed, 9 insertions, 0 deletions
diff --git a/compiler/rustc_query_impl/src/keys.rs b/compiler/rustc_query_impl/src/keys.rs
index e467f419863..1fdb37398f9 100644
--- a/compiler/rustc_query_impl/src/keys.rs
+++ b/compiler/rustc_query_impl/src/keys.rs
@@ -255,6 +255,15 @@ impl<'tcx> Key for GenericArg<'tcx> {
     }
 }
 
+impl<'tcx> Key for mir::ConstantKind<'tcx> {
+    fn query_crate(&self) -> CrateNum {
+        LOCAL_CRATE
+    }
+    fn default_span(&self, _: TyCtxt<'_>) -> Span {
+        DUMMY_SP
+    }
+}
+
 impl<'tcx> Key for &'tcx ty::Const<'tcx> {
     fn query_crate(&self) -> CrateNum {
         LOCAL_CRATE