1 files changed, 1 insertions, 1 deletions
diff --git a/TileBehaviorStrategy.h b/TileBehaviorStrategy.h
index 156b601..0a24abb 100644
--- a/TileBehaviorStrategy.h
+++ b/TileBehaviorStrategy.h
@@ -9,7 +9,7 @@ class Artist;
 
 class TileBehaviorStrategy {
 public:
-	virtual void step(Artist &);
+	virtual void step(Artist *);
 	virtual void update(Tile &) = 0;
 	virtual std::unique_ptr<TileBehaviorStrategy> clone(Museum & m) = 0;