diff --git a/crates/bevy_ecs/src/schedule/executor/mod.rs b/crates/bevy_ecs/src/schedule/executor/mod.rs
index 551ebd448a00d7..f94b25d6ff60e0 100644
--- a/crates/bevy_ecs/src/schedule/executor/mod.rs
+++ b/crates/bevy_ecs/src/schedule/executor/mod.rs
@@ -50,14 +50,16 @@ pub enum ExecutorKind {
 /// [`FixedBitSet`] is used as a smaller, more efficient substitute of `HashSet<usize>`.
 #[derive(Default)]
 pub struct SystemSchedule {
+    // Maps by system id (except `system_ids` field).
+    pub(super) system_ids: Vec<NodeId>,
     pub(super) systems: Vec<BoxedSystem>,
     pub(super) system_conditions: Vec<Vec<BoxedCondition>>,
-    pub(super) set_conditions: Vec<Vec<BoxedCondition>>,
-    pub(super) system_ids: Vec<NodeId>,
-    pub(super) set_ids: Vec<NodeId>,
     pub(super) system_dependencies: Vec<usize>,
     pub(super) system_dependents: Vec<Vec<usize>>,
     pub(super) sets_with_conditions_of_systems: Vec<FixedBitSet>,
+    // Maps by set id (except `set_ids` field).
+    pub(super) set_ids: Vec<NodeId>,
+    pub(super) set_conditions: Vec<Vec<BoxedCondition>>,
     pub(super) systems_in_sets_with_conditions: Vec<FixedBitSet>,
 }