diff --git a/compiler/rustc_trait_selection/src/solve/fulfill.rs b/compiler/rustc_trait_selection/src/solve/fulfill.rs
index fc848fe3080..d883e487716 100644
--- a/compiler/rustc_trait_selection/src/solve/fulfill.rs
+++ b/compiler/rustc_trait_selection/src/solve/fulfill.rs
@@ -41,6 +41,7 @@ impl<'tcx> FulfillmentCtxt<'tcx> {
 }
 
 impl<'tcx> TraitEngine<'tcx> for FulfillmentCtxt<'tcx> {
+    #[instrument(level = "debug", skip(self, _infcx))]
     fn register_predicate_obligation(
         &mut self,
         infcx: &InferCtxt<'tcx>,