diff --git a/src/KeyStateManager.cpp b/src/KeyStateManager.cpp
index 9bf68e9..40e90ca 100644
--- a/src/KeyStateManager.cpp
+++ b/src/KeyStateManager.cpp
@@ -112,8 +112,6 @@ void KeyStateManager::mouse_movement(int mouse_x, int mouse_y)
     current_mouse_delta.y += frame_delta.y;
 
     last_mouse_position = current_frame;
-
-    std::cout << frame_delta.x << "," << frame_delta.y << std::endl;
 }
 
 void KeyStateManager::mouse_click(int mouse_button, int button_state, int mouse_x, int mouse_y)
diff --git a/src/Vectors.h b/src/Vectors.h
index 29bdf82..07eafec 100644
--- a/src/Vectors.h
+++ b/src/Vectors.h
@@ -67,6 +67,7 @@ struct CoordinatesVector
         {
             result.coordinates[i] = coordinates[i] * scalar;
         }
+        return result;
     }
 
     CoordinatesVector operator+(const CoordinatesVector<T,N>& op)
@@ -86,7 +87,6 @@ struct CoordinatesVector
         {
             result.coordinates[i] = coordinates[i] - op.coordinates[i];
         }
-
         return result;
     }
 
@@ -209,6 +209,6 @@ typedef Vec2<float> Vec2f;
 
 typedef Vec3<int> Vec3i;
 typedef Vec3<float> Vec3f;
-
+typedef Vec3<double> Vec3d;
 
 #endif //TESTS_OPENGL_VECTORS_H