diff --git a/server/gameserver/android.h b/server/gameserver/android.h
index 923fa81c..c792159f 100644
--- a/server/gameserver/android.h
+++ b/server/gameserver/android.h
@@ -22,5 +22,6 @@ private:
     void InternalUpdate(int delta_time);
     void RandSkin();
 
+    friend class PBUtils;
     friend class EntityFactory;
 };
diff --git a/server/gameserver/car.h b/server/gameserver/car.h
index 01a4c765..cfbe2cb7 100644
--- a/server/gameserver/car.h
+++ b/server/gameserver/car.h
@@ -69,4 +69,6 @@ class Car : public Creature
     float cur_oil_ = 0;
     glm::vec3 curr_shot_dir_ = GlmHelper::ZERO;
     CircleCollider* self_collider_ = nullptr;
+
+    friend class PBUtils;
 };
diff --git a/server/gameserver/creature.h b/server/gameserver/creature.h
index ea145933..1bf987be 100644
--- a/server/gameserver/creature.h
+++ b/server/gameserver/creature.h
@@ -374,4 +374,5 @@ private:
 
     friend class Skill;
     friend class Trigger;
+    friend class PBUtils;
 };
diff --git a/server/gameserver/hero.h b/server/gameserver/hero.h
index 4aad38a1..6ed1fd46 100644
--- a/server/gameserver/hero.h
+++ b/server/gameserver/hero.h
@@ -52,4 +52,5 @@ private:
     bool detached_ = false;
 
     friend class HeroAI;
+    friend class PBUtils;
 };
diff --git a/server/gameserver/human.h b/server/gameserver/human.h
index d39d7b3f..dbf69791 100644
--- a/server/gameserver/human.h
+++ b/server/gameserver/human.h
@@ -444,4 +444,6 @@ private:
     long long jump_frameno_ = 0;
     float old_sync_speed = 0;
     std::map<int, long long> attacker_hash_;
+
+    friend class PBUtils;
 };
diff --git a/server/gameserver/player.h b/server/gameserver/player.h
index ff63c5da..5cb708ae 100644
--- a/server/gameserver/player.h
+++ b/server/gameserver/player.h
@@ -142,4 +142,5 @@ private:
     a8::XTimerWp watch_war_req_timer_;
 
     friend class EntityFactory;
+    friend class PBUtils;
 };