diff --git a/src/unit_types.hpp b/src/unit_types.hpp
index fe0a1b87f8b..6e9a894b964 100644
--- a/src/unit_types.hpp
+++ b/src/unit_types.hpp
@@ -74,10 +74,6 @@ public:
 	bool special_affects_opponent(const config& cfg) const;
 	bool special_affects_self(const config& cfg) const;
 
-	//this function returns a random animation out of the possible
-	//animations for this attack. It will not return the same attack
-	//each time.
-	const unit_animation* animation(const display& disp, const map_location& loc,const unit* my_unit,const unit_animation::hit_type hit,const attack_type* secondary_attack,int swing_num,int damage) const;
 private:
 	config cfg_;
 	t_string description_;