diff --git a/Makefile b/Makefile
index 06ce9ff..7ff76fc 100644
--- a/Makefile
+++ b/Makefile
@@ -5,7 +5,7 @@ export CPPFLAGS += -I"$(shell cd)"
 else
 export CPPFLAGS += -I"$(shell pwd)"
 endif
-export CXXFLAGS := -Wall -O3
+export CXXFLAGS := -Wall -O1
 
 all: $(TARGET)
 
diff --git a/main/Scene.cc b/main/Scene.cc
index 6001c2a..55327af 100644
--- a/main/Scene.cc
+++ b/main/Scene.cc
@@ -196,8 +196,7 @@ vector<Scene::ShapeDistance> Scene::getRayHits(const Ray & ray)
                 {
                     minSolidDist = intersect_dist;
                 }
-                if (minSolidDist == 0.0
-                    || minSolidDist >= intersect_dist)
+                if (minSolidDist == 0.0 || minSolidDist >= intersect_dist)
                 {
                     hits.push_back(ShapeDistance(*it, intersect_dist));
                 }
diff --git a/shapes/Sphere.cc b/shapes/Sphere.cc
index 045a681..e3aaea6 100644
--- a/shapes/Sphere.cc
+++ b/shapes/Sphere.cc
@@ -38,9 +38,8 @@ Shape::IntersectList Sphere::intersect(const Ray & ray)
 
 Vector Sphere::getNormalAt(const Vector & pt)
 {
-    Vector pt_inv = m_inverse.transform_point(pt);
+    Vector normal = m_inverse.transform_point(pt);
 
-    Vector normal = pt_inv;
     normal.normalize();
 
     return m_transform.transform_normal(normal);