diff --git a/src/gamedata/mod.rs b/src/gamedata/mod.rs
index 58f44f8..1ef384b 100644
--- a/src/gamedata/mod.rs
+++ b/src/gamedata/mod.rs
@@ -1,5 +1,7 @@
+mod heuristic;
 mod indices;
 mod score_checkers;
+
 #[cfg(test)]
 mod tests;