diff --git a/src/g_strife/a_strifeweapons.cpp b/src/g_strife/a_strifeweapons.cpp
index bf5cb124eb..e7d24dc36c 100644
--- a/src/g_strife/a_strifeweapons.cpp
+++ b/src/g_strife/a_strifeweapons.cpp
@@ -137,15 +137,18 @@ DEFINE_ACTION_FUNCTION(AActor, A_JabDagger)
 //
 //============================================================================
 
-DEFINE_ACTION_FUNCTION(AActor, A_AlertMonsters)
+DEFINE_ACTION_FUNCTION_PARAMS(AActor, A_AlertMonsters)
 {
+	ACTION_PARAM_START(1);
+	ACTION_PARAM_FIXED(maxdist, 0);
+
 	if (self->player != NULL)
 	{
-		P_NoiseAlert(self, self);
+		P_NoiseAlert(self, self, false, maxdist);
 	}
 	else if (self->target != NULL && self->target->player != NULL)
 	{
-		P_NoiseAlert (self->target, self);
+		P_NoiseAlert (self->target, self, false, maxdist);
 	}
 }
 
@@ -624,6 +627,7 @@ DEFINE_ACTION_FUNCTION(AActor, A_Burnination)
 			drop->flags |= MF_DROPPED;
 		}
 	}
+
 }
 
 //============================================================================
diff --git a/src/p_enemy.cpp b/src/p_enemy.cpp
index 19d32626b6..55787c6503 100644
--- a/src/p_enemy.cpp
+++ b/src/p_enemy.cpp
@@ -115,7 +115,7 @@ void P_RandomChaseDir (AActor *actor);
 // sound blocking lines cut off traversal.
 //----------------------------------------------------------------------------
 
-void P_RecursiveSound (sector_t *sec, AActor *soundtarget, bool splash, int soundblocks)
+void P_RecursiveSound (sector_t *sec, AActor *soundtarget, bool splash, int soundblocks, AActor *emitter, fixed_t maxdist)
 {
 	int 		i;
 	line_t* 	check;
@@ -136,7 +136,8 @@ void P_RecursiveSound (sector_t *sec, AActor *soundtarget, bool splash, int soun
 	// [RH] Set this in the actors in the sector instead of the sector itself.
 	for (actor = sec->thinglist; actor != NULL; actor = actor->snext)
 	{
-		if (actor != soundtarget && (!splash || !(actor->flags4 & MF4_NOSPLASHALERT)))
+		if (actor != soundtarget && (!splash || !(actor->flags4 & MF4_NOSPLASHALERT)) &&
+			(!maxdist || (P_AproxDistance(actor->x - emitter->x, actor->y - emitter->y) <= maxdist)))
 		{
 			actor->LastHeard = soundtarget;
 		}
@@ -179,11 +180,11 @@ void P_RecursiveSound (sector_t *sec, AActor *soundtarget, bool splash, int soun
 		if (check->flags & ML_SOUNDBLOCK)
 		{
 			if (!soundblocks)
-				P_RecursiveSound (other, soundtarget, splash, 1);
+				P_RecursiveSound (other, soundtarget, splash, 1, emitter, maxdist);
 		}
 		else
 		{
-			P_RecursiveSound (other, soundtarget, splash, soundblocks);
+			P_RecursiveSound (other, soundtarget, splash, soundblocks, emitter, maxdist);
 		}
 	}
 }
@@ -199,7 +200,7 @@ void P_RecursiveSound (sector_t *sec, AActor *soundtarget, bool splash, int soun
 //
 //----------------------------------------------------------------------------
 
-void P_NoiseAlert (AActor *target, AActor *emitter, bool splash)
+void P_NoiseAlert (AActor *target, AActor *emitter, bool splash, fixed_t maxdist)
 {
 	if (emitter == NULL)
 		return;
@@ -208,7 +209,7 @@ void P_NoiseAlert (AActor *target, AActor *emitter, bool splash)
 		return;
 
 	validcount++;
-	P_RecursiveSound (emitter->Sector, target, splash, 0);
+	P_RecursiveSound (emitter->Sector, target, splash, 0, emitter, maxdist);
 }
 
 
diff --git a/src/p_enemy.h b/src/p_enemy.h
index f996a0c52e..343ba27e94 100644
--- a/src/p_enemy.h
+++ b/src/p_enemy.h
@@ -2,6 +2,7 @@
 #define __P_ENEMY_H__
 
 #include "thingdef/thingdef.h"
+#include "tables.h"
 
 struct sector_t;
 class AActor;
@@ -46,9 +47,9 @@ struct FLookExParams
 };
 
 void P_DaggerAlert (AActor *target, AActor *emitter);
-void P_RecursiveSound (sector_t *sec, AActor *soundtarget, bool splash, int soundblocks);
+void P_RecursiveSound (sector_t *sec, AActor *soundtarget, bool splash, int soundblocks, AActor *emitter=NULL, fixed_t maxdist=0);
 bool P_HitFriend (AActor *self);
-void P_NoiseAlert (AActor *target, AActor *emmiter, bool splash=false);
+void P_NoiseAlert (AActor *target, AActor *emmiter, bool splash=false, fixed_t maxdist=0);
 bool P_CheckMeleeRange2 (AActor *actor);
 bool P_Move (AActor *actor);
 bool P_TryWalk (AActor *actor);
diff --git a/src/p_local.h b/src/p_local.h
index 7d3c3d14ce..9e361168d2 100644
--- a/src/p_local.h
+++ b/src/p_local.h
@@ -144,11 +144,6 @@ void	P_Thing_SetVelocity(AActor *actor, fixed_t vx, fixed_t vy, fixed_t vz, bool
 void P_RemoveThing(AActor * actor);
 bool P_Thing_Raise(AActor *thing);
 
-//
-// P_ENEMY
-//
-void	P_NoiseAlert (AActor* target, AActor* emmiter, bool splash);
-
 
 //
 // P_MAPUTL
diff --git a/src/p_pspr.cpp b/src/p_pspr.cpp
index 8b8c5bcdce..31eb1ac7e0 100644
--- a/src/p_pspr.cpp
+++ b/src/p_pspr.cpp
@@ -18,6 +18,7 @@
 #include "d_event.h"
 #include "c_cvars.h"
 #include "m_random.h"
+#include "p_enemy.h"
 #include "p_local.h"
 #include "s_sound.h"
 #include "doomstat.h"
diff --git a/wadsrc/static/actors/actor.txt b/wadsrc/static/actors/actor.txt
index 720caa858b..251be5e0d3 100644
--- a/wadsrc/static/actors/actor.txt
+++ b/wadsrc/static/actors/actor.txt
@@ -171,7 +171,7 @@ ACTOR Actor native //: Thinker
 	action native A_TurretLook();
 	action native A_KlaxonBlare();
 	action native A_Countdown();
-	action native A_AlertMonsters();
+	action native A_AlertMonsters(float maxdist = 0);
 	action native A_ClearSoundTarget();
 	action native A_FireAssaultGun();
 	action native A_CheckTerrain();