diff --git a/src/playsim/actor.h b/src/playsim/actor.h
index 32ea5dfd1..d7ccf45df 100644
--- a/src/playsim/actor.h
+++ b/src/playsim/actor.h
@@ -675,7 +675,7 @@ public:
 	// Adjusts the angle for deflection/reflection of incoming missiles
 	// Returns true if the missile should be allowed to explode anyway
 	bool AdjustReflectionAngle (AActor *thing, DAngle &angle);
-	int AbsorbDamage(int damage, FName dmgtype);
+	int AbsorbDamage(int damage, FName dmgtype, AActor *inflictor, AActor *source, int flags);
 	void AlterWeaponSprite(visstyle_t *vis);
 
 	// Returns true if this actor is within melee range of its target
diff --git a/src/playsim/p_interaction.cpp b/src/playsim/p_interaction.cpp
index 7d16b46fb..d892e675d 100644
--- a/src/playsim/p_interaction.cpp
+++ b/src/playsim/p_interaction.cpp
@@ -1301,7 +1301,7 @@ static int DamageMobj (AActor *target, AActor *inflictor, AActor *source, int da
 				int newdam = damage;
 				if (damage > 0)
 				{
-					newdam = player->mo->AbsorbDamage(damage, mod);
+					newdam = player->mo->AbsorbDamage(damage, mod, inflictor, source, flags);
 				}
 				if (!telefragDamage || (player->mo->flags7 & MF7_LAXTELEFRAGDMG)) //rawdamage is never modified.
 				{
@@ -1371,7 +1371,7 @@ static int DamageMobj (AActor *target, AActor *inflictor, AActor *source, int da
 		if (!(flags & (DMG_NO_ARMOR|DMG_FORCED)) && target->Inventory != NULL && damage > 0)
 		{
 			int newdam = damage;
-			newdam = target->AbsorbDamage(damage, mod);
+			newdam = target->AbsorbDamage(damage, mod, inflictor, source, flags);
 			damage = newdam;
 			if (damage <= 0)
 			{
diff --git a/src/playsim/p_mobj.cpp b/src/playsim/p_mobj.cpp
index cd2631993..7208305dd 100644
--- a/src/playsim/p_mobj.cpp
+++ b/src/playsim/p_mobj.cpp
@@ -3231,14 +3231,14 @@ bool AActor::AdjustReflectionAngle (AActor *thing, DAngle &angle)
 	return false;
 }
 
-int AActor::AbsorbDamage(int damage, FName dmgtype)
+int AActor::AbsorbDamage(int damage, FName dmgtype, AActor *inflictor, AActor *source, int flags)
 {
 	for (AActor *item = Inventory; item != nullptr; item = item->Inventory)
 	{
 		IFVIRTUALPTRNAME(item, NAME_Inventory, AbsorbDamage)
 		{
-			VMValue params[4] = { item, damage, dmgtype.GetIndex(), &damage };
-			VMCall(func, params, 4, nullptr, 0);
+			VMValue params[7] = { item, damage, dmgtype.GetIndex(), &damage, inflictor, source, flags };
+			VMCall(func, params, 7, nullptr, 0);
 		}
 	}
 	return damage;
diff --git a/wadsrc/static/zscript/actors/inventory/armor.zs b/wadsrc/static/zscript/actors/inventory/armor.zs
index 0887197b1..bc764fc2c 100644
--- a/wadsrc/static/zscript/actors/inventory/armor.zs
+++ b/wadsrc/static/zscript/actors/inventory/armor.zs
@@ -141,7 +141,7 @@ class BasicArmor : Armor
 	//
 	//===========================================================================
 
-	override void AbsorbDamage (int damage, Name damageType, out int newdamage)
+	override void AbsorbDamage (int damage, Name damageType, out int newdamage, Actor inflictor, Actor source, int flags)
 	{
 		int saved;
 
@@ -552,7 +552,7 @@ class HexenArmor : Armor
 	//
 	//===========================================================================
 
-	override void AbsorbDamage (int damage, Name damageType, out int newdamage)
+	override void AbsorbDamage (int damage, Name damageType, out int newdamage, Actor inflictor, Actor source, int flags)
 	{
 		if (!DamageTypeDefinition.IgnoreArmor(damageType))
 		{
diff --git a/wadsrc/static/zscript/actors/inventory/inventory.zs b/wadsrc/static/zscript/actors/inventory/inventory.zs
index 91fc72958..439f0c532 100644
--- a/wadsrc/static/zscript/actors/inventory/inventory.zs
+++ b/wadsrc/static/zscript/actors/inventory/inventory.zs
@@ -1099,7 +1099,7 @@ class Inventory : Actor
 	//
 	//===========================================================================
 
-	virtual void AbsorbDamage (int damage, Name damageType, out int newdamage) {}
+	virtual void AbsorbDamage (int damage, Name damageType, out int newdamage, Actor inflictor = null, Actor source = null, int flags = 0) {}
 	
 	//===========================================================================
 	//
diff --git a/wadsrc/static/zscript/actors/inventory/powerups.zs b/wadsrc/static/zscript/actors/inventory/powerups.zs
index 307bfd411..ede8f7aa7 100644
--- a/wadsrc/static/zscript/actors/inventory/powerups.zs
+++ b/wadsrc/static/zscript/actors/inventory/powerups.zs
@@ -761,7 +761,7 @@ class PowerIronFeet : Powerup
 		Powerup.Color "00 ff 00", 0.125;
 	}
 	
-	override void AbsorbDamage (int damage, Name damageType, out int newdamage)
+	override void AbsorbDamage (int damage, Name damageType, out int newdamage, Actor inflictor, Actor source, int flags)
 	{
 		if (damageType == 'Drowning')
 		{
@@ -795,7 +795,7 @@ class PowerMask : PowerIronFeet
 		Inventory.Icon "I_MASK";
 	}
 	
-	override void AbsorbDamage (int damage, Name damageType, out int newdamage)
+	override void AbsorbDamage (int damage, Name damageType, out int newdamage, Actor inflictor, Actor source, int flags)
 	{
 		if (damageType == 'Fire' || damageType == 'Drowning')
 		{