diff --git a/src/gen/fold.rs b/src/gen/fold.rs
index c7e12c8d..a56f3143 100644
--- a/src/gen/fold.rs
+++ b/src/gen/fold.rs
@@ -56,10 +56,6 @@ pub trait Fold {
         fold_bare_fn_arg(self, i)
     }
     #[cfg(any(feature = "derive", feature = "full"))]
-    fn fold_bare_fn_arg_name(&mut self, i: BareFnArgName) -> BareFnArgName {
-        fold_bare_fn_arg_name(self, i)
-    }
-    #[cfg(any(feature = "derive", feature = "full"))]
     fn fold_bin_op(&mut self, i: BinOp) -> BinOp {
         fold_bin_op(self, i)
     }
@@ -874,7 +870,7 @@ where
         attrs: FoldHelper::lift(node.attrs, |it| f.fold_attribute(it)),
         name: (node.name).map(|it| {
             (
-                f.fold_bare_fn_arg_name((it).0),
+                f.fold_ident((it).0),
                 Token ! [ : ](tokens_helper(f, &(it).1.spans)),
             )
         }),
@@ -882,18 +878,6 @@ where
     }
 }
 #[cfg(any(feature = "derive", feature = "full"))]
-pub fn fold_bare_fn_arg_name<F>(f: &mut F, node: BareFnArgName) -> BareFnArgName
-where
-    F: Fold + ?Sized,
-{
-    match node {
-        BareFnArgName::Named(_binding_0) => BareFnArgName::Named(f.fold_ident(_binding_0)),
-        BareFnArgName::Wild(_binding_0) => {
-            BareFnArgName::Wild(Token![_](tokens_helper(f, &_binding_0.spans)))
-        }
-    }
-}
-#[cfg(any(feature = "derive", feature = "full"))]
 pub fn fold_bin_op<F>(f: &mut F, node: BinOp) -> BinOp
 where
     F: Fold + ?Sized,
diff --git a/src/gen/visit.rs b/src/gen/visit.rs
index 8c2d31a1..fd7c3a4f 100644
--- a/src/gen/visit.rs
+++ b/src/gen/visit.rs
@@ -57,10 +57,6 @@ pub trait Visit<'ast> {
         visit_bare_fn_arg(self, i)
     }
     #[cfg(any(feature = "derive", feature = "full"))]
-    fn visit_bare_fn_arg_name(&mut self, i: &'ast BareFnArgName) {
-        visit_bare_fn_arg_name(self, i)
-    }
-    #[cfg(any(feature = "derive", feature = "full"))]
     fn visit_bin_op(&mut self, i: &'ast BinOp) {
         visit_bin_op(self, i)
     }
@@ -875,26 +871,12 @@ where
         v.visit_attribute(it)
     }
     if let Some(it) = &node.name {
-        v.visit_bare_fn_arg_name(&(it).0);
+        v.visit_ident(&(it).0);
         tokens_helper(v, &(it).1.spans);
     };
     v.visit_type(&node.ty);
 }
 #[cfg(any(feature = "derive", feature = "full"))]
-pub fn visit_bare_fn_arg_name<'ast, V>(v: &mut V, node: &'ast BareFnArgName)
-where
-    V: Visit<'ast> + ?Sized,
-{
-    match node {
-        BareFnArgName::Named(_binding_0) => {
-            v.visit_ident(_binding_0);
-        }
-        BareFnArgName::Wild(_binding_0) => {
-            tokens_helper(v, &_binding_0.spans);
-        }
-    }
-}
-#[cfg(any(feature = "derive", feature = "full"))]
 pub fn visit_bin_op<'ast, V>(v: &mut V, node: &'ast BinOp)
 where
     V: Visit<'ast> + ?Sized,
diff --git a/src/gen/visit_mut.rs b/src/gen/visit_mut.rs
index b34a5ab6..f282333d 100644
--- a/src/gen/visit_mut.rs
+++ b/src/gen/visit_mut.rs
@@ -61,10 +61,6 @@ pub trait VisitMut {
         visit_bare_fn_arg_mut(self, i)
     }
     #[cfg(any(feature = "derive", feature = "full"))]
-    fn visit_bare_fn_arg_name_mut(&mut self, i: &mut BareFnArgName) {
-        visit_bare_fn_arg_name_mut(self, i)
-    }
-    #[cfg(any(feature = "derive", feature = "full"))]
     fn visit_bin_op_mut(&mut self, i: &mut BinOp) {
         visit_bin_op_mut(self, i)
     }
@@ -879,26 +875,12 @@ where
         v.visit_attribute_mut(it)
     }
     if let Some(it) = &mut node.name {
-        v.visit_bare_fn_arg_name_mut(&mut (it).0);
+        v.visit_ident_mut(&mut (it).0);
         tokens_helper(v, &mut (it).1.spans);
     };
     v.visit_type_mut(&mut node.ty);
 }
 #[cfg(any(feature = "derive", feature = "full"))]
-pub fn visit_bare_fn_arg_name_mut<V>(v: &mut V, node: &mut BareFnArgName)
-where
-    V: VisitMut + ?Sized,
-{
-    match node {
-        BareFnArgName::Named(_binding_0) => {
-            v.visit_ident_mut(_binding_0);
-        }
-        BareFnArgName::Wild(_binding_0) => {
-            tokens_helper(v, &mut _binding_0.spans);
-        }
-    }
-}
-#[cfg(any(feature = "derive", feature = "full"))]
 pub fn visit_bin_op_mut<V>(v: &mut V, node: &mut BinOp)
 where
     V: VisitMut + ?Sized,
diff --git a/syn.json b/syn.json
index e8c2d43d..bd4bb129 100644
--- a/syn.json
+++ b/syn.json
@@ -156,7 +156,7 @@
           "option": {
             "tuple": [
               {
-                "syn": "BareFnArgName"
+                "proc_macro2": "Ident"
               },
               {
                 "token": "Colon"
@@ -169,27 +169,6 @@
         }
       }
     },
-    {
-      "ident": "BareFnArgName",
-      "features": {
-        "any": [
-          "derive",
-          "full"
-        ]
-      },
-      "variants": {
-        "Named": [
-          {
-            "proc_macro2": "Ident"
-          }
-        ],
-        "Wild": [
-          {
-            "token": "Underscore"
-          }
-        ]
-      }
-    },
     {
       "ident": "BinOp",
       "features": {
diff --git a/tests/debug/gen.rs b/tests/debug/gen.rs
index 6b111ad0..c197be05 100644
--- a/tests/debug/gen.rs
+++ b/tests/debug/gen.rs
@@ -120,7 +120,7 @@ impl Debug for Lite<syn::BareFnArg> {
         if let Some(val) = &_val.name {
             #[derive(RefCast)]
             #[repr(transparent)]
-            struct Print((syn::BareFnArgName, syn::token::Colon));
+            struct Print((proc_macro2::Ident, syn::token::Colon));
             impl Debug for Print {
                 fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
                     formatter.write_str("Some")?;
@@ -137,24 +137,6 @@ impl Debug for Lite<syn::BareFnArg> {
         formatter.finish()
     }
 }
-impl Debug for Lite<syn::BareFnArgName> {
-    fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
-        let _val = &self.value;
-        match _val {
-            syn::BareFnArgName::Named(_val) => {
-                formatter.write_str("Named")?;
-                formatter.write_str("(")?;
-                Debug::fmt(Lite(_val), formatter)?;
-                formatter.write_str(")")?;
-                Ok(())
-            }
-            syn::BareFnArgName::Wild(_val) => {
-                formatter.write_str("Wild")?;
-                Ok(())
-            }
-        }
-    }
-}
 impl Debug for Lite<syn::BinOp> {
     fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
         let _val = &self.value;