diff --git a/src/simulator/crates/mc-turn/src/lib.rs b/src/simulator/crates/mc-turn/src/lib.rs
index fc8f667f..dc236265 100644
--- a/src/simulator/crates/mc-turn/src/lib.rs
+++ b/src/simulator/crates/mc-turn/src/lib.rs
@@ -22,6 +22,9 @@ pub mod combat_event;
 pub mod processor;
 pub mod spatial_index;
 
+#[cfg(test)]
+mod processor_invariants;
+
 pub use game_state::{CityEcology, GameState, MapUnit, PlayerState, TechState};
 pub use combat_event::{FaunaCombatEvent, TurnResult};
 pub use processor::{LairCombatConfig, TurnProcessor};