diff --git a/crates/fj-core/src/validate/cycle.rs b/crates/fj-core/src/validate/cycle.rs
index 017694733..574aaf448 100644
--- a/crates/fj-core/src/validate/cycle.rs
+++ b/crates/fj-core/src/validate/cycle.rs
@@ -14,10 +14,11 @@ impl Validate for Cycle {
         &self,
         config: &ValidationConfig,
         errors: &mut Vec<ValidationError>,
-        _: &Geometry,
+        geometry: &Geometry,
     ) {
         errors.extend(
-            AdjacentHalfEdgesNotConnected::check(self, config).map(Into::into),
+            AdjacentHalfEdgesNotConnected::check(self, geometry, config)
+                .map(Into::into),
         );
     }
 }
diff --git a/crates/fj-core/src/validation/checks/half_edge_connection.rs b/crates/fj-core/src/validation/checks/half_edge_connection.rs
index 04f45b2e9..2d65a92b9 100644
--- a/crates/fj-core/src/validation/checks/half_edge_connection.rs
+++ b/crates/fj-core/src/validation/checks/half_edge_connection.rs
@@ -1,6 +1,7 @@
 use fj_math::{Point, Scalar};
 
 use crate::{
+    geometry::Geometry,
     objects::{Cycle, HalfEdge},
     storage::Handle,
     validation::{validation_check::ValidationCheck, ValidationConfig},
@@ -40,6 +41,7 @@ pub struct AdjacentHalfEdgesNotConnected {
 impl ValidationCheck<Cycle> for AdjacentHalfEdgesNotConnected {
     fn check(
         object: &Cycle,
+        _: &Geometry,
         config: &ValidationConfig,
     ) -> impl Iterator<Item = Self> {
         object.half_edges().pairs().filter_map(|(first, second)| {
@@ -87,7 +89,10 @@ mod tests {
         let mut core = Core::new();
 
         let valid = Cycle::polygon([[0., 0.], [1., 0.], [1., 1.]], &mut core);
-        AdjacentHalfEdgesNotConnected::check_and_return_first_error(&valid)?;
+        AdjacentHalfEdgesNotConnected::check_and_return_first_error(
+            &valid,
+            &core.layers.geometry,
+        )?;
 
         let invalid = valid.update_half_edge(
             valid.half_edges().first(),
@@ -96,7 +101,10 @@ mod tests {
             },
             &mut core,
         );
-        AdjacentHalfEdgesNotConnected::check_and_expect_one_error(&invalid);
+        AdjacentHalfEdgesNotConnected::check_and_expect_one_error(
+            &invalid,
+            &core.layers.geometry,
+        );
 
         Ok(())
     }
diff --git a/crates/fj-core/src/validation/validation_check.rs b/crates/fj-core/src/validation/validation_check.rs
index 9e75b1aef..154536993 100644
--- a/crates/fj-core/src/validation/validation_check.rs
+++ b/crates/fj-core/src/validation/validation_check.rs
@@ -1,5 +1,7 @@
 use std::fmt::Display;
 
+use crate::geometry::Geometry;
+
 use super::ValidationConfig;
 
 /// Run a specific validation check on an object
@@ -10,6 +12,7 @@ pub trait ValidationCheck<T>: Sized {
     /// Run the validation check on the implementing object
     fn check(
         object: &T,
+        geometry: &Geometry,
         config: &ValidationConfig,
     ) -> impl Iterator<Item = Self>;
 
@@ -17,9 +20,12 @@ pub trait ValidationCheck<T>: Sized {
     ///
     /// This method is designed for convenience over flexibility (it is intended
     /// for use in unit tests), and thus always uses the default configuration.
-    fn check_and_return_first_error(object: &T) -> Result<(), Self> {
+    fn check_and_return_first_error(
+        object: &T,
+        geometry: &Geometry,
+    ) -> Result<(), Self> {
         let config = ValidationConfig::default();
-        let mut errors = Self::check(object, &config);
+        let mut errors = Self::check(object, geometry, &config);
 
         if let Some(err) = errors.next() {
             return Err(err);
@@ -32,12 +38,12 @@ pub trait ValidationCheck<T>: Sized {
     ///
     /// This method is designed for convenience over flexibility (it is intended
     /// for use in unit tests), and thus always uses the default configuration.
-    fn check_and_expect_one_error(object: &T) -> Self
+    fn check_and_expect_one_error(object: &T, geometry: &Geometry) -> Self
     where
         Self: Display,
     {
         let config = ValidationConfig::default();
-        let mut errors = Self::check(object, &config).peekable();
+        let mut errors = Self::check(object, geometry, &config).peekable();
 
         let err = errors
             .next()