diff --git a/crates/fj-kernel/src/operations/update/shell.rs b/crates/fj-kernel/src/operations/update/shell.rs
index 00dcf6370..ee5d16cba 100644
--- a/crates/fj-kernel/src/operations/update/shell.rs
+++ b/crates/fj-kernel/src/operations/update/shell.rs
@@ -6,7 +6,7 @@ use crate::{
 /// Update a [`Shell`]
 pub trait UpdateShell {
     /// Update a face of the shell
-    fn update_face(
+    fn replace_face(
         &self,
         handle: &Handle<Face>,
         replacement: Handle<Face>,
@@ -17,7 +17,7 @@ pub trait UpdateShell {
 }
 
 impl UpdateShell for Shell {
-    fn update_face(
+    fn replace_face(
         &self,
         handle: &Handle<Face>,
         replacement: Handle<Face>,
diff --git a/crates/fj-kernel/src/validate/shell.rs b/crates/fj-kernel/src/validate/shell.rs
index 3c1e98127..f1a81b4e8 100644
--- a/crates/fj-kernel/src/validate/shell.rs
+++ b/crates/fj-kernel/src/validate/shell.rs
@@ -210,7 +210,7 @@ mod tests {
             [[0., 0., 0.], [0., 1., 0.], [1., 0., 0.], [0., 0., 1.]],
             &mut services,
         );
-        let invalid = valid.shell.update_face(
+        let invalid = valid.shell.replace_face(
             &valid.abc.face,
             valid
                 .abc