diff --git a/compiler/rustc_hir_analysis/src/check/wfcheck.rs b/compiler/rustc_hir_analysis/src/check/wfcheck.rs
index 92fd4625ee8..cc29d40c0be 100644
--- a/compiler/rustc_hir_analysis/src/check/wfcheck.rs
+++ b/compiler/rustc_hir_analysis/src/check/wfcheck.rs
@@ -1350,7 +1350,7 @@ fn check_where_clauses<'tcx>(wfcx: &WfCheckingCtxt<'_, 'tcx>, span: Span, def_id
                     // is incorrect when dealing with unused substs, for example
                     // for `struct Foo<const N: usize, const M: usize = { 1 - 2 }>`
                     // we should eagerly error.
-                    let default_ct = tcx.const_param_default(param.def_id);
+                    let default_ct = tcx.bound_const_param_default(param.def_id).subst_identity();
                     if !default_ct.needs_subst() {
                         wfcx.register_wf_obligation(
                             tcx.def_span(param.def_id),
@@ -1396,7 +1396,7 @@ fn check_where_clauses<'tcx>(wfcx: &WfCheckingCtxt<'_, 'tcx>, span: Span, def_id
             GenericParamDefKind::Const { .. } => {
                 // If the param has a default, ...
                 if is_our_default(param) {
-                    let default_ct = tcx.const_param_default(param.def_id);
+                    let default_ct = tcx.bound_const_param_default(param.def_id).subst_identity();
                     // ... and it's not a dependent default, ...
                     if !default_ct.needs_subst() {
                         // ... then substitute it with the default.
diff --git a/compiler/rustc_metadata/src/rmeta/encoder.rs b/compiler/rustc_metadata/src/rmeta/encoder.rs
index 030328d1e26..f7caf30c74c 100644
--- a/compiler/rustc_metadata/src/rmeta/encoder.rs
+++ b/compiler/rustc_metadata/src/rmeta/encoder.rs
@@ -2070,7 +2070,7 @@ fn encode_info_for_generics(&mut self, generics: &hir::Generics<'tcx>) {
                 hir::GenericParamKind::Const { ref default, .. } => {
                     let def_id = param.def_id.to_def_id();
                     if default.is_some() {
-                        record!(self.tables.const_param_default[def_id] <- self.tcx.const_param_default(def_id))
+                        record!(self.tables.const_param_default[def_id] <- self.tcx.bound_const_param_default(def_id).subst_identity())
                     }
                 }
             }
diff --git a/compiler/rustc_privacy/src/lib.rs b/compiler/rustc_privacy/src/lib.rs
index 564cb1baa69..9ee1e012ef2 100644
--- a/compiler/rustc_privacy/src/lib.rs
+++ b/compiler/rustc_privacy/src/lib.rs
@@ -838,7 +838,9 @@ fn generics(&mut self) -> &mut Self {
                 GenericParamDefKind::Const { has_default } => {
                     self.visit(self.ev.tcx.type_of(param.def_id));
                     if has_default {
-                        self.visit(self.ev.tcx.const_param_default(param.def_id));
+                        self.visit(
+                            self.ev.tcx.bound_const_param_default(param.def_id).subst_identity(),
+                        );
                     }
                 }
             }
diff --git a/src/librustdoc/clean/mod.rs b/src/librustdoc/clean/mod.rs
index 025a4379f45..869c1e3512f 100644
--- a/src/librustdoc/clean/mod.rs
+++ b/src/librustdoc/clean/mod.rs
@@ -506,7 +506,9 @@ fn clean_generic_param_def<'tcx>(
                     Some(def.def_id),
                 )),
                 default: match has_default {
-                    true => Some(Box::new(cx.tcx.const_param_default(def.def_id).to_string())),
+                    true => Some(Box::new(
+                        cx.tcx.bound_const_param_default(def.def_id).subst_identity().to_string(),
+                    )),
                     false => None,
                 },
             },