diff --git a/Cargo.toml b/Cargo.toml
index f97eb9d..b9d2c13 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "slotted-egraphs"
-version = "0.0.28"
+version = "0.0.29"
 edition = "2021"
 description = "E-Graphs with name binding"
 license = "Apache-2.0 OR MIT"
@@ -15,7 +15,7 @@ trace = ["tracing/max_level_trace", "tracing/release_max_level_trace", "tracing"
 features = ["explanations"]
 
 [dependencies]
-slotted-egraphs-derive = { path = "slotted-egraphs-derive" }
+slotted-egraphs-derive = "=0.0.3"
 fnv = "1.0.7"
 tracing = { version = "0.1", features = ["attributes"], optional = true }
 symbol_table = { version = "0.3", features = ["global"] }
diff --git a/slotted-egraphs-derive/Cargo.toml b/slotted-egraphs-derive/Cargo.toml
index 8edc139..6c61504 100644
--- a/slotted-egraphs-derive/Cargo.toml
+++ b/slotted-egraphs-derive/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "slotted-egraphs-derive"
 description = "proc macros to implement slotted Languages"
-version = "0.0.2"
+version = "0.0.3"
 edition = "2021"
 license = "Apache-2.0 OR MIT"
 repository = "https://github.com/memoryleak47/slotted-egraphs/"
diff --git a/slotted-egraphs-derive/src/lib.rs b/slotted-egraphs-derive/src/lib.rs
index f520d76..c39c2fe 100644
--- a/slotted-egraphs-derive/src/lib.rs
+++ b/slotted-egraphs-derive/src/lib.rs
@@ -1,6 +1,6 @@
 use proc_macro::TokenStream as TokenStream1;
 use proc_macro2::TokenStream as TokenStream2;
-use quote::{format_ident, quote, ToTokens};
+use quote::{quote, ToTokens};
 use syn::*;
 
 // We allow the user to use tuples, Slot, Bind<_>, AppliedId and "user-defined types" in their enum variants.
@@ -16,7 +16,6 @@ pub fn define_language(input: TokenStream1) -> TokenStream1 {
                                           x.discriminant.take().map(|(_, e)| e)
                                       }).collect();
 
-    let ident_names: Vec<Ident> = ie.variants.iter().map(|x| x.ident.clone()).collect();
     let all_slot_occurrences_mut_arms: Vec<TokenStream2> = ie.variants.iter().map(|x| produce_all_slot_occurrences_mut(&name, x)).collect();
     let public_slot_occurrences_mut_arms: Vec<TokenStream2> = ie.variants.iter().map(|x| produce_public_slot_occurrences_mut(&name, x)).collect();
     let applied_id_occurrences_mut_arms: Vec<TokenStream2> = ie.variants.iter().map(|x| produce_applied_id_occurrences_mut(&name, x)).collect();