diff --git a/source/games/duke/src/funct.h b/source/games/duke/src/funct.h
index 5e7adea90..2b714a81c 100644
--- a/source/games/duke/src/funct.h
+++ b/source/games/duke/src/funct.h
@@ -230,7 +230,7 @@ void PlayerColorChanged(void);
 void nonsharedkeys(void);
 void apply_seasick(player_struct* p, double scalefactor);
 void calcviewpitch(player_struct* p, double factor);
-void sethorizon(int snum, int sb_snum, double factor, bool frominput, fixed_t adjustment);
+void sethorizon(int snum, int sb_snum, double factor, fixed_t adjustment);
 bool movementBlocked(int snum);
 void GetInput();
 void startmainmenu();
diff --git a/source/games/duke/src/input.cpp b/source/games/duke/src/input.cpp
index 094144a8d..8a5ed93ca 100644
--- a/source/games/duke/src/input.cpp
+++ b/source/games/duke/src/input.cpp
@@ -1260,7 +1260,7 @@ void GetInput()
 		// Do these in the same order as the old code.
 		calcviewpitch(p, scaleAdjust);
 		applylook(myconnectindex, scaleAdjust, input.q16avel);
-		sethorizon(myconnectindex, loc.bits, scaleAdjust, true, input.q16horz);
+		sethorizon(myconnectindex, loc.bits, scaleAdjust, input.q16horz);
 	}
 }
 
diff --git a/source/games/duke/src/player.cpp b/source/games/duke/src/player.cpp
index e3a198646..a95a41431 100644
--- a/source/games/duke/src/player.cpp
+++ b/source/games/duke/src/player.cpp
@@ -991,7 +991,7 @@ void checklook(int snum, int sb_snum)
 //
 //---------------------------------------------------------------------------
 
-void sethorizon(int snum, int sb_snum, double factor, bool frominput, fixed_t adjustment)
+void sethorizon(int snum, int sb_snum, double factor, fixed_t adjustment)
 {
 	auto p = &ps[snum];
 
@@ -1000,20 +1000,14 @@ void sethorizon(int snum, int sb_snum, double factor, bool frominput, fixed_t ad
 
 	if (p->return_to_center > 0 && (sb_snum & (SKB_LOOK_UP | SKB_LOOK_DOWN)) == 0) // only snap back if no relevant button is pressed.
 	{
-		p->return_to_center -= factor * 1.;
-		horizAngle += factor * -(frominput? 1.1 : 0.55) * horizAngle; // in P_GetInput this used different factors than in the original code. Hm...
+		p->return_to_center += -factor * (p->return_to_center / 2);
+		horizAngle += -factor * (horizAngle / 2);
 
-		if (horizAngle > -1. && horizAngle < 1.)
+		if (horizAngle > -0.5 && horizAngle < 0.5)
 		{
 			horizAngle = 0.;
 			p->return_to_center = 0.;
 		}
-
-		if (p->aim_mode == 0)
-		{
-			// threshold was 5
-			if (p->q16horizoff > F16(-1) && p->q16horizoff < F16(1)) p->sethorizoff(0);
-		}
 	}
 
 	// Convert back to Build's horizon.