diff --git a/source/MobTypesManager.h b/source/MobTypesManager.h
index a1b2dfddc..941dac729 100644
--- a/source/MobTypesManager.h
+++ b/source/MobTypesManager.h
@@ -23,7 +23,7 @@ protected :
 	static tMobTypes2Names& m_MobsTypes2Names();
 	static tMobTypes2Names MobTypes2NamesInitializerBeforeCx11();
 
-	typedef const std::map<cMonster::eType,cMonster::eFamily> tMobType2Family;  //MG TODO : this is redundancy with cMonster::getFamily() methods. But almost all the management of MobType is redundancy in this project. Maybe is it optimization, or just historical TODO : understand and do something about it.
+	typedef const std::map<cMonster::eType,cMonster::eFamily> tMobType2Family;
 	static tMobType2Family& m_MobsType2Family();
 	static tMobType2Family MobType2FamilyInitializerBeforeCx11();
 
diff --git a/source/Mobs/AggressiveMonster.cpp b/source/Mobs/AggressiveMonster.cpp
index d48523373..93dba6d7b 100644
--- a/source/Mobs/AggressiveMonster.cpp
+++ b/source/Mobs/AggressiveMonster.cpp
@@ -95,12 +95,3 @@ void cAggressiveMonster::Tick(float a_Dt, cChunk & a_Chunk)
 }
 
 
-cMonster::eFamily cAggressiveMonster::GetMobFamily() const
-{
-	return mfHostile;
-}
-
-
-
-
-
diff --git a/source/Mobs/AggressiveMonster.h b/source/Mobs/AggressiveMonster.h
index c16419542..f22ed5b89 100644
--- a/source/Mobs/AggressiveMonster.h
+++ b/source/Mobs/AggressiveMonster.h
@@ -20,7 +20,6 @@ public:
 	
 	virtual void EventSeePlayer(cEntity *) override;
 
-	virtual eFamily GetMobFamily(void) const  override;
 	
 protected:
 	float m_ChaseTime;
diff --git a/source/Mobs/Bat.cpp b/source/Mobs/Bat.cpp
index ff86f4139..715f25483 100644
--- a/source/Mobs/Bat.cpp
+++ b/source/Mobs/Bat.cpp
@@ -13,7 +13,3 @@ cBat::cBat(void) :
 }
 
 
-cMonster::eFamily cBat::GetMobFamily() const
-{
-	return mfAmbient;
-}
diff --git a/source/Mobs/Bat.h b/source/Mobs/Bat.h
index e0afb5744..fd3e00a07 100644
--- a/source/Mobs/Bat.h
+++ b/source/Mobs/Bat.h
@@ -17,7 +17,6 @@ public:
 
 	CLASS_PROTODEF(cBat);
 	
-	virtual eFamily GetMobFamily(void) const override;
 } ;
 
 
diff --git a/source/Mobs/Monster.cpp b/source/Mobs/Monster.cpp
index a42ae30ee..b378b2bc6 100644
--- a/source/Mobs/Monster.cpp
+++ b/source/Mobs/Monster.cpp
@@ -9,6 +9,7 @@
 #include "../Entities/Player.h"
 #include "../Defines.h"
 #include "../MonsterConfig.h"
+#include "../MobTypesManager.h"
 #include "../MersenneTwister.h"
 
 #include "../Vector3f.h"
@@ -17,6 +18,7 @@
 #include "../Tracer.h"
 #include "../Chunk.h"
 
+
 // #include "../../iniFile/iniFile.h"
 
 
@@ -510,3 +512,7 @@ void cMonster::HandleDaylightBurning(cChunk & a_Chunk)
 
 
 
+cMonster::eFamily cMonster::GetMobFamily(void) const
+{
+	return cMobTypesManager::getFamilyFromType(GetMobTypeAsEnum());
+}
diff --git a/source/Mobs/Monster.h b/source/Mobs/Monster.h
index ef7904e8e..e08fd518a 100644
--- a/source/Mobs/Monster.h
+++ b/source/Mobs/Monster.h
@@ -94,7 +94,8 @@ public:
 	
 	char GetMobType(void) const {return m_MobType; } // MG TODO : see if we can delete this one.
 	eType GetMobTypeAsEnum(void) const {return (eType)m_MobType; }  // MG TODO : see if we should store m_MobType as enum instead of char.
-	virtual eFamily GetMobFamily(void) const = 0;
+	eFamily GetMobFamily(void) const;
+
 
 	const char * GetState();
 	void SetState(const AString & str);
diff --git a/source/Mobs/PassiveMonster.cpp b/source/Mobs/PassiveMonster.cpp
index 3d7b8c8aa..8c69c8059 100644
--- a/source/Mobs/PassiveMonster.cpp
+++ b/source/Mobs/PassiveMonster.cpp
@@ -55,11 +55,5 @@ void cPassiveMonster::Tick(float a_Dt, cChunk & a_Chunk)
 
 
 
-cMonster::eFamily cPassiveMonster::GetMobFamily() const 
-{
-	return mfPassive;
-}
-
-
 
 
diff --git a/source/Mobs/PassiveMonster.h b/source/Mobs/PassiveMonster.h
index 9d3557727..908bb0ce6 100644
--- a/source/Mobs/PassiveMonster.h
+++ b/source/Mobs/PassiveMonster.h
@@ -20,7 +20,6 @@ public:
 	/// When hit by someone, run away
 	virtual void DoTakeDamage(TakeDamageInfo & a_TDI) override;
 
-	virtual eFamily GetMobFamily(void) const  override;
 } ;
 
 
diff --git a/source/Mobs/Squid.cpp b/source/Mobs/Squid.cpp
index 50265aea4..e6a44079a 100644
--- a/source/Mobs/Squid.cpp
+++ b/source/Mobs/Squid.cpp
@@ -54,7 +54,3 @@ void cSquid::Tick(float a_Dt, cChunk & a_Chunk)
 
 
 
-cMonster::eFamily cSquid::GetMobFamily() const
-{
-	return mfWater;
-}
diff --git a/source/Mobs/Squid.h b/source/Mobs/Squid.h
index d5f3a74d7..ad299b95c 100644
--- a/source/Mobs/Squid.h
+++ b/source/Mobs/Squid.h
@@ -21,7 +21,6 @@ public:
 	
 	virtual void GetDrops(cItems & a_Drops, cEntity * a_Killer = NULL) override;
 
-	virtual eFamily GetMobFamily(void) const  override;
 } ;