diff --git a/tvix/castore/build.rs b/tvix/castore/build.rs
index 6424487b2..089c093e7 100644
--- a/tvix/castore/build.rs
+++ b/tvix/castore/build.rs
@@ -15,6 +15,7 @@ fn main() -> Result<()> {
     // https://github.com/hyperium/tonic/issues/908
     let mut config = prost_build::Config::new();
     config.bytes(["."]);
+    config.type_attribute(".", "#[derive(Eq, Hash)]");
 
     builder
         .build_server(true)
diff --git a/tvix/castore/src/proto/mod.rs b/tvix/castore/src/proto/mod.rs
index 59f5c1fdf..97ef18358 100644
--- a/tvix/castore/src/proto/mod.rs
+++ b/tvix/castore/src/proto/mod.rs
@@ -1,4 +1,4 @@
-#![allow(clippy::derive_partial_eq_without_eq, non_snake_case)]
+#![allow(non_snake_case)]
 // https://github.com/hyperium/tonic/issues/1056
 use bstr::ByteSlice;
 use std::{collections::HashSet, iter::Peekable, str};
@@ -167,8 +167,6 @@ impl node::Node {
     }
 }
 
-impl Eq for node::Node {}
-
 impl PartialOrd for node::Node {
     fn partial_cmp(&self, other: &Self) -> Option<std::cmp::Ordering> {
         Some(self.cmp(other))