diff --git a/source/games/duke/src/player.cpp b/source/games/duke/src/player.cpp
index cf3c3fecb..1b144b02d 100644
--- a/source/games/duke/src/player.cpp
+++ b/source/games/duke/src/player.cpp
@@ -1050,7 +1050,7 @@ void shootbloodsplat(DDukeActor* actor, int p, const DVector3& pos, DAngle ang,
 				if (spawned)
 				{
 					spawned->vel.X = -0.75;
-					spawned->spr.angle = -hit.hitWall->delta().Angle() + DAngle90; // note the '-' sign here!
+					spawned->spr.angle = hit.hitWall->delta().Angle() - DAngle90;
 					spawned->spr.pos = hit.hitpos;
 					spawned->spr.cstat |= randomXFlip();
 					ssp(spawned, CLIPMASK0);
diff --git a/source/games/duke/src/player_d.cpp b/source/games/duke/src/player_d.cpp
index a9ab65de2..0767a198f 100644
--- a/source/games/duke/src/player_d.cpp
+++ b/source/games/duke/src/player_d.cpp
@@ -521,7 +521,7 @@ static void shootweapon(DDukeActor *actor, int p, DVector3 pos, DAngle ang, int
 							if (hole)
 							{
 								hole->vel.X = -1 / 16.;
-								hole->spr.angle = -hit.hitWall->delta().Angle() + DAngle90;
+								hole->spr.angle = hit.hitWall->delta().Angle() - DAngle90;
 								ssp(hole, CLIPMASK0);
 								hole->spr.cstat2 |= CSTAT2_SPRITE_DECAL;
 							}
diff --git a/source/games/duke/src/player_r.cpp b/source/games/duke/src/player_r.cpp
index 929949c33..816608420 100644
--- a/source/games/duke/src/player_r.cpp
+++ b/source/games/duke/src/player_r.cpp
@@ -410,7 +410,7 @@ static void shootweapon(DDukeActor* actor, int p, DVector3 pos, DAngle ang, int
 							if (hole)
 							{
 								hole->vel.X = -1 / 16;
-								hole->spr.angle = -hit.hitWall->delta().Angle() + DAngle90;
+								hole->spr.angle = hit.hitWall->delta().Angle() - DAngle90;
 								ssp(hole, CLIPMASK0);
 								hole->spr.cstat2 |= CSTAT2_SPRITE_DECAL;
 							}
diff --git a/source/games/duke/src/sectors_d.cpp b/source/games/duke/src/sectors_d.cpp
index 809fef221..a17bb8ed0 100644
--- a/source/games/duke/src/sectors_d.cpp
+++ b/source/games/duke/src/sectors_d.cpp
@@ -679,7 +679,7 @@ void checkhitwall_d(DDukeActor* spr, walltype* wal, const DVector3& pos, int atw
 					if (spawned)
 					{
 						spawned->spr.cstat |= CSTAT_SPRITE_TRANSLUCENT | CSTAT_SPRITE_ALIGNMENT_WALL | CSTAT_SPRITE_YCENTER;
-						spawned->spr.angle = -wal->delta().Angle() - DAngle90;
+						spawned->spr.angle = wal->delta().Angle() + DAngle90;
 
 						S_PlayActorSound(SOMETHINGHITFORCE, spawned);
 					}