diff --git a/Pantograph/Delate.lean b/Pantograph/Delate.lean
index be17729..4b3bd51 100644
--- a/Pantograph/Delate.lean
+++ b/Pantograph/Delate.lean
@@ -327,11 +327,11 @@ partial def serializeExpressionSexp (expr: Expr) (sanitize: Bool := true): MetaM
       -- Lean these are handled using a `#` prefix.
       pure s!"{deBruijnIndex}"
     | .fvar fvarId =>
-      let name := ofName fvarId.name
+      let name := fvarId.name
       pure s!"(:fv {name})"
     | .mvar mvarId => do
         let pref := if ← mvarId.isDelayedAssigned then "mvd" else "mv"
-        let name := ofName mvarId.name
+        let name := mvarId.name
         pure s!"(:{pref} {name})"
     | .sort level =>
       let level := serializeSortLevel level sanitize
@@ -346,20 +346,20 @@ partial def serializeExpressionSexp (expr: Expr) (sanitize: Bool := true): MetaM
       let args := " ".intercalate args
       pure s!"({fn'} {args})"
     | .lam binderName binderType body binderInfo => do
-      let binderName' := ofName binderName
+      let binderName' := binderName.eraseMacroScopes
       let binderType' ← self binderType
       let body' ← self body
       let binderInfo' := binderInfoSexp binderInfo
       pure s!"(:lambda {binderName'} {binderType'} {body'}{binderInfo'})"
     | .forallE binderName binderType body binderInfo => do
-      let binderName' := ofName binderName
+      let binderName' := binderName.eraseMacroScopes
       let binderType' ← self binderType
       let body' ← self body
       let binderInfo' := binderInfoSexp binderInfo
       pure s!"(:forall {binderName'} {binderType'} {body'}{binderInfo'})"
     | .letE name type value body _ => do
       -- Dependent boolean flag diacarded
-      let name' := serializeName name
+      let name' := name.eraseMacroScopes
       let type' ← self type
       let value' ← self value
       let body' ← self body
@@ -387,7 +387,6 @@ partial def serializeExpressionSexp (expr: Expr) (sanitize: Bool := true): MetaM
     | .implicit => " :implicit"
     | .strictImplicit => " :strictImplicit"
     | .instImplicit => " :instImplicit"
-  ofName (name: Name) := serializeName name sanitize
 
 def serializeExpression (options: @&Protocol.Options) (e: Expr): MetaM Protocol.Expression := do
   let pp?: Option String ← match options.printExprPretty with
@@ -420,13 +419,13 @@ def serializeGoal (options: @&Protocol.Options) (goal: MVarId) (mvarDecl: Metava
       match localDecl with
       | .cdecl _ fvarId userName _ _ _ =>
         return {
-          name := ofName fvarId.name,
+          name := fvarId.name.toString,
           userName:= ofName userName.simpMacroScopes,
           isInaccessible := userName.isInaccessibleUserName
         }
       | .ldecl _ fvarId userName _ _ _ _ => do
         return {
-          name := ofName fvarId.name,
+          name := fvarId.name.toString,
           userName := toString userName.simpMacroScopes,
           isInaccessible := userName.isInaccessibleUserName
         }
@@ -436,7 +435,7 @@ def serializeGoal (options: @&Protocol.Options) (goal: MVarId) (mvarDecl: Metava
         let userName := userName.simpMacroScopes
         let type ← instantiate type
         return {
-          name := ofName fvarId.name,
+          name := fvarId.name.toString,
           userName:= ofName userName,
           isInaccessible := userName.isInaccessibleUserName
           type? := .some (← serializeExpression options type)
@@ -450,7 +449,7 @@ def serializeGoal (options: @&Protocol.Options) (goal: MVarId) (mvarDecl: Metava
         else
           pure $ .none
         return {
-          name := ofName fvarId.name,
+          name := fvarId.name.toString,
           userName:= ofName userName,
           isInaccessible := userName.isInaccessibleUserName
           type? := .some (← serializeExpression options type)
@@ -469,7 +468,7 @@ def serializeGoal (options: @&Protocol.Options) (goal: MVarId) (mvarDecl: Metava
           | false => ppVar localDecl
         return var::acc
     return {
-      name := ofName goal.name,
+      name := goal.name.toString,
       userName? := if mvarDecl.userName == .anonymous then .none else .some (ofName mvarDecl.userName),
       isConversion := isLHSGoal? mvarDecl.type |>.isSome,
       target := (← serializeExpression options (← instantiate mvarDecl.type)),
diff --git a/Test/Delate.lean b/Test/Delate.lean
index 227ab24..d918dc8 100644
--- a/Test/Delate.lean
+++ b/Test/Delate.lean
@@ -32,7 +32,7 @@ def test_expr_to_binder (env: Environment): IO LSpec.TestSeq := do
 def test_sexp_of_symbol (env: Environment): IO LSpec.TestSeq := do
   let entries: List (String × String) := [
     -- This one contains unhygienic variable names which must be suppressed
-    ("Nat.add", "(:forall _ (:c Nat) (:forall _ (:c Nat) (:c Nat)))"),
+    ("Nat.add", "(:forall a (:c Nat) (:forall a (:c Nat) (:c Nat)))"),
     -- These ones are normal and easy
     ("Nat.add_one", "(:forall n (:c Nat) ((:c Eq) (:c Nat) ((:c HAdd.hAdd) (:c Nat) (:c Nat) (:c Nat) ((:c instHAdd) (:c Nat) (:c instAddNat)) 0 ((:c OfNat.ofNat) (:c Nat) (:lit 1) ((:c instOfNatNat) (:lit 1)))) ((:c Nat.succ) 0)))"),
     ("Nat.le_of_succ_le", "(:forall n (:c Nat) (:forall m (:c Nat) (:forall h ((:c LE.le) (:c Nat) (:c instLENat) ((:c Nat.succ) 1) 0) ((:c LE.le) (:c Nat) (:c instLENat) 2 1)) :implicit) :implicit)"),
diff --git a/Test/Library.lean b/Test/Library.lean
index d995374..df1ba4d 100644
--- a/Test/Library.lean
+++ b/Test/Library.lean
@@ -24,7 +24,7 @@ def test_expr_echo (env: Environment): IO LSpec.TestSeq := do
       },
       expr := {
         pp? := "⟨∀ (x : Prop), x → x, fun x h => h⟩",
-        sexp? := "((:c PSigma.mk) (:sort 0) (:lambda p (:sort 0) 0) (:forall x (:sort 0) (:forall _ 0 1)) (:lambda x (:sort 0) (:lambda h 0 0)))",
+        sexp? := "((:c PSigma.mk) (:sort 0) (:lambda p (:sort 0) 0) (:forall x (:sort 0) (:forall a 0 1)) (:lambda x (:sort 0) (:lambda h 0 0)))",
       }
     }))
     return tests
diff --git a/Test/Proofs.lean b/Test/Proofs.lean
index 8e3e2a2..02c1bf6 100644
--- a/Test/Proofs.lean
+++ b/Test/Proofs.lean
@@ -282,9 +282,9 @@ def test_or_comm: TestM Unit := do
     serializeExpressionSexp (← instantiateAll state2.parentExpr?.get!) (sanitize := false)
   let orPQ := s!"((:c Or) (:fv {fvP}) (:fv {fvQ}))"
   let orQP := s!"((:c Or) (:fv {fvQ}) (:fv {fvP}))"
-  let motive := s!"(:lambda t._@._hyg.26 {orPQ} (:forall h ((:c Eq) ((:c Or) (:fv {fvP}) (:fv {fvQ})) (:fv {fvH}) 0) {orQP}))"
-  let caseL := s!"(:lambda h._@._hyg.27 (:fv {fvP}) (:lambda h._@._hyg.28 ((:c Eq) {orPQ} (:fv {fvH}) ((:c Or.inl) (:fv {fvP}) (:fv {fvQ}) 0)) (:subst (:mv {caseL}) (:fv {fvP}) (:fv {fvQ}) 1)))"
-  let caseR := s!"(:lambda h._@._hyg.29 (:fv {fvQ}) (:lambda h._@._hyg.30 ((:c Eq) {orPQ} (:fv {fvH}) ((:c Or.inr) (:fv {fvP}) (:fv {fvQ}) 0)) (:subst (:mv {caseR}) (:fv {fvP}) (:fv {fvQ}) 1)))"
+  let motive := s!"(:lambda t {orPQ} (:forall h ((:c Eq) ((:c Or) (:fv {fvP}) (:fv {fvQ})) (:fv {fvH}) 0) {orQP}))"
+  let caseL := s!"(:lambda h (:fv {fvP}) (:lambda h ((:c Eq) {orPQ} (:fv {fvH}) ((:c Or.inl) (:fv {fvP}) (:fv {fvQ}) 0)) (:subst (:mv {caseL}) (:fv {fvP}) (:fv {fvQ}) 1)))"
+  let caseR := s!"(:lambda h (:fv {fvQ}) (:lambda h ((:c Eq) {orPQ} (:fv {fvH}) ((:c Or.inr) (:fv {fvP}) (:fv {fvQ}) 0)) (:subst (:mv {caseR}) (:fv {fvP}) (:fv {fvQ}) 1)))"
   let conduit := s!"((:c Eq.refl) {orPQ} (:fv {fvH}))"
   addTest $ LSpec.test "(2 parent)" (state2parent ==
     s!"((:c Or.casesOn) (:fv {fvP}) (:fv {fvQ}) {motive} (:fv {fvH}) {caseL} {caseR} {conduit})")