diff --git a/src/ahp/constraint_systems.rs b/src/ahp/constraint_systems.rs
index ddac9ca..1f7a3f5 100644
--- a/src/ahp/constraint_systems.rs
+++ b/src/ahp/constraint_systems.rs
@@ -340,7 +340,7 @@ mod tests {
             vec![],
             vec![],
         ];
-        let joint_matrix = crate::ahp::indexer::sum_matrices(&a, &b, &c);
+        let joint_matrix = indexer::sum_matrices(&a, &b, &c);
         let num_non_zero = dbg!(num_non_zero(&joint_matrix));
         let interpolation_domain = EvaluationDomain::new(num_non_zero).unwrap();
         let output_domain = EvaluationDomain::new(2 + 6).unwrap();
diff --git a/src/lib.rs b/src/lib.rs
index 7ca47b4..5b82ba3 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -12,7 +12,7 @@
 #![deny(stable_features, unreachable_pub, non_shorthand_field_patterns)]
 #![deny(unused_attributes, unused_imports, unused_mut, missing_docs)]
 #![deny(renamed_and_removed_lints, stable_features, unused_allocation)]
-#![deny(unused_comparisons, bare_trait_objects, unused_must_use, const_err)]
+#![deny(unused_comparisons, bare_trait_objects, unused_must_use)]
 #![forbid(unsafe_code)]
 
 #[macro_use]