diff --git a/include/Engine/Collision/Collision.h b/include/Engine/Collision/Collision.h
index 5b4150d8..546d03f5 100644
--- a/include/Engine/Collision/Collision.h
+++ b/include/Engine/Collision/Collision.h
@@ -90,10 +90,10 @@ boost::optional<EntityAABB> AbsoluteAABBExplosionEffect(EntityWrapper& entity);
 //Returns the first entity hit by the input ray. entitiesPotentiallyHitSorted needs to be sorted 
 //by their distance to the ray, e.g. result from Octree<EntityAABB>::ObjectsPossiblyHitByRay.
 //Returns boost::none if none was hit. outDistance will be the distance to the intersection point if the ray intersects.
-boost::optional<EntityAABB> EntityFirstHitByRay(const Ray& ray, std::vector<EntityAABB> entitiesPotentiallyHitSorted, float outDistance, glm::vec3& outIntersectPos);
+boost::optional<EntityAABB> EntityFirstHitByRay(const Ray& ray, std::vector<EntityAABB> entitiesPotentiallyHitSorted, float& outDistance, glm::vec3& outIntersectPos);
 //Returns the first entity hit by the input ray that exists in the octree.
 //outDistance will be the distance to the intersection point if the ray intersects. 
-boost::optional<EntityAABB> EntityFirstHitByRay(const Ray& ray, Octree<EntityAABB>* octree, float outDistance, glm::vec3& outIntersectPos);
+boost::optional<EntityAABB> EntityFirstHitByRay(const Ray& ray, Octree<EntityAABB>* octree, float& outDistance, glm::vec3& outIntersectPos);
 
 }
 
diff --git a/src/Engine/Collision/Collision.cpp b/src/Engine/Collision/Collision.cpp
index 7b182de1..ab2098b7 100644
--- a/src/Engine/Collision/Collision.cpp
+++ b/src/Engine/Collision/Collision.cpp
@@ -642,7 +642,7 @@ boost::optional<EntityAABB> AbsoluteAABBExplosionEffect(EntityWrapper& entity)
     return aabb;
 }
 
-boost::optional<EntityAABB> EntityFirstHitByRay(const Ray& ray, std::vector<EntityAABB> entitiesPotentiallyHitSorted, float outDistance, glm::vec3& outIntersectPos)
+boost::optional<EntityAABB> EntityFirstHitByRay(const Ray& ray, std::vector<EntityAABB> entitiesPotentiallyHitSorted, float& outDistance, glm::vec3& outIntersectPos)
 {
     for (EntityAABB& entityBox : entitiesPotentiallyHitSorted) {
         if (!entityBox.Entity.HasComponent("Model")) {
@@ -667,7 +667,7 @@ boost::optional<EntityAABB> EntityFirstHitByRay(const Ray& ray, std::vector<Enti
     return boost::none;
 }
 
-boost::optional<EntityAABB> EntityFirstHitByRay(const Ray& ray, Octree<EntityAABB>* octree, float outDistance, glm::vec3& outIntersectPos)
+boost::optional<EntityAABB> EntityFirstHitByRay(const Ray& ray, Octree<EntityAABB>* octree, float& outDistance, glm::vec3& outIntersectPos)
 {
     std::vector<EntityAABB> outObjects;
     octree->ObjectsPossiblyHitByRay(ray, outObjects);