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-rw-r--r--compiler/rustc_traits/src/chalk/mod.rs2
1 files changed, 1 insertions, 1 deletions
diff --git a/compiler/rustc_traits/src/chalk/mod.rs b/compiler/rustc_traits/src/chalk/mod.rs
index db7ea4253e3..f76386fa720 100644
--- a/compiler/rustc_traits/src/chalk/mod.rs
+++ b/compiler/rustc_traits/src/chalk/mod.rs
@@ -76,7 +76,7 @@ pub(crate) fn evaluate_goal<'tcx>(
                         chalk_ir::UniverseIndex { counter: ui.index() },
                     ),
                     CanonicalVarKind::Const(_ui, _ty) => unimplemented!(),
-                    CanonicalVarKind::PlaceholderConst(_pc) => unimplemented!(),
+                    CanonicalVarKind::PlaceholderConst(_pc, _ty) => unimplemented!(),
                 }),
             ),
             value: obligation.value.lower_into(interner),