diff --git a/app-proto/src/assembly.rs b/app-proto/src/assembly.rs
index 24f9b93..1684716 100644
--- a/app-proto/src/assembly.rs
+++ b/app-proto/src/assembly.rs
@@ -315,7 +315,7 @@ impl Assembly {
         // step each element along the mass shell geodesic that matches its
         // velocity in the deformation found above
         /* KLUDGE */
-        // since our test assemblies only involve spheres, we assume that every
+        // since our test assemblies only include spheres, we assume that every
         // element is on the 1 mass shell
         for (_, elt) in self.elements.get_clone_untracked() {
             elt.representation.update_silent(|rep| {