diff --git a/compiler/rustc_trait_selection/src/traits/select/candidate_assembly.rs b/compiler/rustc_trait_selection/src/traits/select/candidate_assembly.rs
index 451427a6980..1bca7ed8d32 100644
--- a/compiler/rustc_trait_selection/src/traits/select/candidate_assembly.rs
+++ b/compiler/rustc_trait_selection/src/traits/select/candidate_assembly.rs
@@ -899,6 +899,10 @@ fn assemble_candidates_for_transmutability(
             return;
         }
 
+        if obligation.references_error() {
+            return;
+        }
+
         candidates.vec.push(TransmutabilityCandidate);
     }