diff --git a/language.version b/language.version
index a4be9a002..86f5eb393 100644
--- a/language.version
+++ b/language.version
@@ -1,3 +1,3 @@
 [default]
-SWWM_MODVER="\cyDEMOLITIONIST \cw1.3pre r732 \cu(Thu 19 Jan 10:11:24 CET 2023)\c-";
-SWWM_SHORTVER="\cw1.3pre r732 \cu(2023-01-19 10:11:24)\c-";
+SWWM_MODVER="\cyDEMOLITIONIST \cw1.3pre r733 \cu(Thu 19 Jan 10:13:21 CET 2023)\c-";
+SWWM_SHORTVER="\cw1.3pre r733 \cu(2023-01-19 10:13:21)\c-";
diff --git a/zscript/player/swwm_player.zsc b/zscript/player/swwm_player.zsc
index 09861a941..a7d3e1de9 100644
--- a/zscript/player/swwm_player.zsc
+++ b/zscript/player/swwm_player.zsc
@@ -80,8 +80,9 @@ Class Demolitionist : PlayerPawn
 	bool hitactivate;
 	Actor froggy;
 
-	transient int lastuse, failcounter, failcooldown;
+	transient int lastuse, failcounter, failcooldown, mirrorcooldown;
 	transient SWWMItemTracer itrace;
+	transient SWWMMirrorTracer mtrace;
 	bool meleeuse;
 
 	transient bool bWalking;
diff --git a/zscript/player/swwm_player_fx.zsc b/zscript/player/swwm_player_fx.zsc
index 02be8064f..b95b975dd 100644
--- a/zscript/player/swwm_player_fx.zsc
+++ b/zscript/player/swwm_player_fx.zsc
@@ -45,6 +45,21 @@ Class SWWMMagItem play
 	}
 }
 
+// finds the closest reflective surface
+// can only match lines, as reflective sector plane data isn't obtainable from zscript
+Class SWWMMirrorTracer : LineTracer
+{
+	override ETraceStatus TraceCallback()
+	{
+		if ( Results.HitType == TRACE_HitWall )
+		{
+			if ( !Results.HitLine.sidedef[1] && (Results.HitLine.special == Line_Mirror) )
+				return TRACE_Stop;
+		}
+		return TRACE_Skip;
+	}
+}
+
 Class DashTrail : SWWMNonInteractiveActor
 {
 	Mixin SWWMMinimalMovingWaterTick;
diff --git a/zscript/player/swwm_player_think.zsc b/zscript/player/swwm_player_think.zsc
index 875e0af07..2e69d2570 100644
--- a/zscript/player/swwm_player_think.zsc
+++ b/zscript/player/swwm_player_think.zsc
@@ -183,6 +183,21 @@ extend Class Demolitionist
 		}
 	}
 
+	bool CheckMirrorUse()
+	{
+		if ( !mtrace ) mtrace = new("SWWMMirrorTracer");
+		Vector3 dir = SWWMUtility.GetPlayerAimDir(self);
+		Vector3 origin = SWWMUtility.GetPlayerEye(self);
+		mtrace.Trace(origin,level.PointInSector(origin.xy),dir,UseRange,0,ignoreallactors:true);
+		if ( mtrace.Results.HitType != TRACE_HitWall ) return false;
+		// there's a mirror here
+		if ( (gametic > mirrorcooldown) && (swwm_mutevoice < 2) )
+			mirrorcooldown = SWWMHandler.AddOneliner("mirror",2,10)+70;
+		// mute fail use
+		A_StopSound(CHAN_VOICE);
+		return true;
+	}
+
 	override void PlayerThink()
 	{
 		oldangle = angle;
@@ -198,7 +213,7 @@ extend Class Demolitionist
 			CheckItemUsePickup();
 		}
 		Super.PlayerThink();
-		if ( (gametic == lastuse) && IsActorPlayingSound(CHAN_VOICE,"*usefail") )
+		if ( (gametic == lastuse) && IsActorPlayingSound(CHAN_VOICE,"*usefail") && !CheckMirrorUse() )	// don't play fail use if we're checking out a mirror
 		{
 			failcounter++;
 			if ( (failcounter > 8) && !Random[DemoLines](0,max(0,12-failcounter/3)) && (gametic > failcooldown) && (swwm_mutevoice < 2) )