diff --git a/compiler/rustc_trait_selection/src/solve/inspect/analyse.rs b/compiler/rustc_trait_selection/src/solve/inspect/analyse.rs
index e4fc8803e0f..15c8d9e5bcb 100644
--- a/compiler/rustc_trait_selection/src/solve/inspect/analyse.rs
+++ b/compiler/rustc_trait_selection/src/solve/inspect/analyse.rs
@@ -143,7 +143,7 @@ fn candidates_recur(
             // FIXME: This is currently wrong if we don't even try any
             // candidates, e.g. for a trait goal, as in this case `candidates` is
             // actually supposed to be empty.
-            inspect::ProbeKind::Root { result: _ } => {
+            inspect::ProbeKind::Root { result } => {
                 if candidates.is_empty() {
                     candidates.push(InspectCandidate {
                         goal: self,