diff --git a/src/thingdef/thingdef_codeptr.cpp b/src/thingdef/thingdef_codeptr.cpp
index b114ef8e8..d2f5bca9d 100644
--- a/src/thingdef/thingdef_codeptr.cpp
+++ b/src/thingdef/thingdef_codeptr.cpp
@@ -729,7 +729,7 @@ DEFINE_ACTION_FUNCTION_PARAMS(AActor, A_JumpIfArmorType)
 
 DEFINE_ACTION_FUNCTION_PARAMS(AActor, A_Explode)
 {
-	ACTION_PARAM_START(7);
+	ACTION_PARAM_START(8);
 	ACTION_PARAM_INT(damage, 0);
 	ACTION_PARAM_INT(distance, 1);
 	ACTION_PARAM_BOOL(hurtSource, 2);
@@ -737,6 +737,7 @@ DEFINE_ACTION_FUNCTION_PARAMS(AActor, A_Explode)
 	ACTION_PARAM_INT(fulldmgdistance, 4);
 	ACTION_PARAM_INT(nails, 5);
 	ACTION_PARAM_INT(naildamage, 6);
+	ACTION_PARAM_CLASS(pufftype, 7);
 
 	if (damage < 0)	// get parameters from metadata
 	{
@@ -761,7 +762,7 @@ DEFINE_ACTION_FUNCTION_PARAMS(AActor, A_Explode)
 			// Comparing the results of a test wad with Eternity, it seems A_NailBomb does not aim
 			P_LineAttack (self, ang, MISSILERANGE, 0,
 				//P_AimLineAttack (self, ang, MISSILERANGE), 
-				naildamage, NAME_None, NAME_BulletPuff);
+				naildamage, NAME_None, pufftype);
 		}
 	}
 
diff --git a/wadsrc/static/actors/actor.txt b/wadsrc/static/actors/actor.txt
index 33fcb37f6..20abe30ab 100644
--- a/wadsrc/static/actors/actor.txt
+++ b/wadsrc/static/actors/actor.txt
@@ -254,7 +254,7 @@ ACTOR Actor native //: Thinker
 	action native A_Burst(class<Actor> chunktype);
 	action native A_Blast(int flags = 0, int strength = 255, int radius = 255, float speed = 20, class<Actor> blasteffect = "BlastEffect", sound blastsound = "BlastRadius");
 	action native A_RadiusThrust(int force = 128, int distance = -1, bool affectsource = true, int fullthrustdistance = 0);
-	action native A_Explode(int damage = -1, int distance = -1, bool hurtsource = true, bool alert = false, int fulldamagedistance = 0, int nails = 0, int naildamage = 10);
+	action native A_Explode(int damage = -1, int distance = -1, bool hurtsource = true, bool alert = false, int fulldamagedistance = 0, int nails = 0, int naildamage = 10, class<Actor> pufftype = "BulletPuff");
 	action native A_Stop();
 	action native A_Respawn(int flags = 1);
 	action native A_BarrelDestroy();