diff --git a/Cargo.toml b/Cargo.toml
index 8943f29..b81c43f 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "slotted-egraphs"
-version = "0.0.26"
+version = "0.0.27"
 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 = "=0.0.1"
 fnv = "1.0.7"
 tracing = { version = "0.1", features = ["attributes"], optional = true }
 
diff --git a/src/lang.rs b/src/lang.rs
index 7d56292..a2a503b 100644
--- a/src/lang.rs
+++ b/src/lang.rs
@@ -26,6 +26,8 @@ impl Language for Slot {
     fn num_children_hint() -> Option<usize> { Some(1) }
 }
 
+/// Implements [Language] for payload types that are independent of Slots. For example u32, String etc.
+#[macro_export]
 macro_rules! impl_slotless_lang {
     ($id:ident) => {
         impl Language for $id {
@@ -44,7 +46,6 @@ macro_rules! impl_slotless_lang {
 
 impl_slotless_lang!(u32);
 
-
 impl<L: Language> Language for Bind<L> {
     fn all_slot_occurences_mut(&mut self) -> Vec<&mut Slot> {
         let mut v = vec![&mut self.slot];