diff --git a/src/actor.h b/src/actor.h
index 248847e5b..ab4909bb0 100644
--- a/src/actor.h
+++ b/src/actor.h
@@ -487,6 +487,7 @@ enum ActorBounceFlag
 	BOUNCE_AutoOffFloorOnly = 1<<13,		// like BOUNCE_AutoOff, but only on floors
 	BOUNCE_UseBounceState = 1<<14,	// Use Bounce[.*] states
 	BOUNCE_NotOnShootables = 1<<15,	// do not bounce off shootable actors if we are a projectile. Explode instead.
+	BOUNCE_BounceOnUnrips = 1<<16,	// projectile bounces on actors with DONTRIP
 
 	BOUNCE_TypeMask = BOUNCE_Walls | BOUNCE_Floors | BOUNCE_Ceilings | BOUNCE_Actors | BOUNCE_AutoOff | BOUNCE_HereticType | BOUNCE_MBF,
 
diff --git a/src/p_map.cpp b/src/p_map.cpp
index cea1a33d6..e0b16ca2e 100644
--- a/src/p_map.cpp
+++ b/src/p_map.cpp
@@ -3642,7 +3642,8 @@ bool P_BounceActor(AActor *mo, AActor *BlockingMobj, bool ontop)
 		|| ((BlockingMobj->player == NULL) && (!(BlockingMobj->flags3 & MF3_ISMONSTER)))))
 	{
 		// Rippers should not bounce off shootable actors, since they rip through them.
-		if ((mo->flags & MF_MISSILE) && (mo->flags2 & MF2_RIP) && BlockingMobj->flags & MF_SHOOTABLE)
+		if ((mo->flags & MF_MISSILE) && (mo->flags2 & MF2_RIP) && BlockingMobj->flags & MF_SHOOTABLE
+			&& !(mo->BounceFlags & BOUNCE_BounceOnUnrips && BlockingMobj->flags5 & MF5_DONTRIP))
 			return true;
 
 		if (BlockingMobj->flags & MF_SHOOTABLE && mo->BounceFlags & BOUNCE_NotOnShootables)
diff --git a/src/scripting/thingdef_data.cpp b/src/scripting/thingdef_data.cpp
index a10d05710..60200e765 100644
--- a/src/scripting/thingdef_data.cpp
+++ b/src/scripting/thingdef_data.cpp
@@ -359,6 +359,7 @@ static FFlagDef ActorFlagDefs[]=
 	DEFINE_FLAG2(BOUNCE_AutoOffFloorOnly, BOUNCEAUTOOFFFLOORONLY, AActor, BounceFlags),
 	DEFINE_FLAG2(BOUNCE_UseBounceState, USEBOUNCESTATE, AActor, BounceFlags),
 	DEFINE_FLAG2(BOUNCE_NotOnShootables, DONTBOUNCEONSHOOTABLES, AActor, BounceFlags),
+	DEFINE_FLAG2(BOUNCE_BounceOnUnrips, BOUNCEONUNRIPPABLES, AActor, BounceFlags),
 };
 
 // These won't be accessible through bitfield variables