diff --git a/src/pipeline/collision_pipeline.rs b/src/pipeline/collision_pipeline.rs
index 43e9e7f..a27e5a8 100644
--- a/src/pipeline/collision_pipeline.rs
+++ b/src/pipeline/collision_pipeline.rs
@@ -94,7 +94,9 @@ impl CollisionPipeline {
         modified_colliders: &mut Vec<ColliderHandle>,
     ) {
         for handle in modified_colliders.drain(..) {
-            colliders.index_mut_internal(handle).changes = ColliderChanges::empty();
+            if let Some(co) = colliders.get_mut_internal(handle) {
+                co.changes = ColliderChanges::empty();
+            }
         }
     }