diff --git a/source/games/duke/src/funct.h b/source/games/duke/src/funct.h
index 31f35a9c4..ba69a9bf2 100644
--- a/source/games/duke/src/funct.h
+++ b/source/games/duke/src/funct.h
@@ -98,7 +98,7 @@ int wakeup(DDukeActor* sn, DDukePlayer* const p);
 
 
 int timedexit(int snum);
-void dokneeattack(int snum);
+void dokneeattack(DDukePlayer* const p);
 int endoflevel(int snum);
 void playerisdead(int snum, int psectlotag, double fz, double cz);
 void footprints(int snum);
diff --git a/source/games/duke/src/player.cpp b/source/games/duke/src/player.cpp
index 5aa3c2efb..e67330e27 100644
--- a/source/games/duke/src/player.cpp
+++ b/source/games/duke/src/player.cpp
@@ -362,9 +362,8 @@ DDukeActor* aim_(DDukeActor* actor, DDukeActor* weapon, double aimangle, bool* b
 //
 //---------------------------------------------------------------------------
 
-void dokneeattack(int snum)
+void dokneeattack(DDukePlayer* const p)
 {
-	auto p = getPlayer(snum);
 	auto pact = p->GetActor();
 
 	if (p->knee_incs > 0)
@@ -393,7 +392,7 @@ void dokneeattack(int snum)
 				if (p->actorsqu->isPlayer())
 				{
 					quickkill(getPlayer(p->actorsqu->PlayerIndex()));
-					getPlayer(p->actorsqu->PlayerIndex())->frag_ps = snum;
+					getPlayer(p->actorsqu->PlayerIndex())->frag_ps = p->pnum;
 				}
 				else
 				{
diff --git a/source/games/duke/src/player_d.cpp b/source/games/duke/src/player_d.cpp
index 3acd7984f..f998c62f1 100644
--- a/source/games/duke/src/player_d.cpp
+++ b/source/games/duke/src/player_d.cpp
@@ -1955,7 +1955,7 @@ HORIZONLY:
 		}
 	}
 
-	dokneeattack(snum);
+	dokneeattack(p);
 
 	if (fi.doincrements(p)) return;
 
diff --git a/source/games/duke/src/player_r.cpp b/source/games/duke/src/player_r.cpp
index b0d03ae23..7f4ecfea1 100644
--- a/source/games/duke/src/player_r.cpp
+++ b/source/games/duke/src/player_r.cpp
@@ -2908,7 +2908,7 @@ HORIZONLY:
 			return;
 		}
 	}
-	dokneeattack(snum);
+	dokneeattack(p);
 
 
 	if (fi.doincrements(p)) return;