diff --git a/src/d_player.h b/src/d_player.h
index 978c70bc4..2b67ead99 100644
--- a/src/d_player.h
+++ b/src/d_player.h
@@ -146,13 +146,13 @@ public:
 	FName Face;			// Doom status bar face (when used)
 	FName Portrait;
 	FName Slot[10];
-	double HexenArmor[5];
 
 	// Everything below this point is only used by scripted code.
 	int			RunHealth;
 	TObjPtr<AActor*> InvFirst;		// first inventory item displayed on inventory bar
 	double		ForwardMove1, ForwardMove2;
 	double		SideMove1, SideMove2;
+	double HexenArmor[5];
 	PClassActor *FlechetteType;
 
 };
diff --git a/src/namedef.h b/src/namedef.h
index d1d064a6a..4eb36e30c 100644
--- a/src/namedef.h
+++ b/src/namedef.h
@@ -1032,6 +1032,10 @@ xx(PickupSound)
 xx(ColorRangeStart)
 xx(ColorRangeEnd)
 xx(InvFirst)
+xx(ForwardMove1)
+xx(ForwardMove2)
+xx(SideMove1)
+xx(SideMove2)
 
 xx(BlueCard)
 xx(YellowCard)
diff --git a/src/scripting/thingdef_properties.cpp b/src/scripting/thingdef_properties.cpp
index a709b8e31..05f3c61a9 100644
--- a/src/scripting/thingdef_properties.cpp
+++ b/src/scripting/thingdef_properties.cpp
@@ -1541,11 +1541,11 @@ DEFINE_CLASS_PROPERTY_PREFIX(player, spawnclass, L, PlayerPawn)
 DEFINE_CLASS_PROPERTY_PREFIX(player, forwardmove, F_f, PlayerPawn)
 {
 	PROP_DOUBLE_PARM(m, 0);
-	defaults->ForwardMove1 = defaults->ForwardMove2 = m;
+	defaults->FloatVar(NAME_ForwardMove1) = defaults->FloatVar(NAME_ForwardMove2) = m;
 	if (PROP_PARM_COUNT > 1)
 	{
 		PROP_DOUBLE_PARM(m2, 1);
-		defaults->ForwardMove2 = m2;
+		defaults->FloatVar(NAME_ForwardMove2) = m2;
 	}
 }
 
@@ -1555,11 +1555,11 @@ DEFINE_CLASS_PROPERTY_PREFIX(player, forwardmove, F_f, PlayerPawn)
 DEFINE_CLASS_PROPERTY_PREFIX(player, sidemove, F_f, PlayerPawn)
 {
 	PROP_DOUBLE_PARM(m, 0);
-	defaults->SideMove1 = defaults->SideMove2 = m;
+	defaults->FloatVar(NAME_SideMove1) = defaults->FloatVar(NAME_SideMove2) = m;
 	if (PROP_PARM_COUNT > 1)
 	{
 		PROP_DOUBLE_PARM(m2, 1);
-		defaults->SideMove2 = m2;
+		defaults->FloatVar(NAME_SideMove2) = m2;
 	}
 }
 
@@ -1666,7 +1666,8 @@ DEFINE_CLASS_PROPERTY_PREFIX(player, hexenarmor, FFFFF, PlayerPawn)
 	for (int i = 0; i < 5; i++)
 	{
 		PROP_DOUBLE_PARM(val, i);
-		defaults->HexenArmor[i] = val;
+		auto hexarmor = &defaults->FloatVar(NAME_HexenArmor);
+		hexarmor[i] = val;
 	}
 }