diff --git a/src/d_player.h b/src/d_player.h
index 4da0e9d10b..f50db97b16 100644
--- a/src/d_player.h
+++ b/src/d_player.h
@@ -434,6 +434,7 @@ public:
 	TObjPtr<AWeapon>	PremorphWeapon;		// ready weapon before morphing
 	int			chickenPeck;			// chicken peck countdown
 	int			jumpTics;				// delay the next jump for a moment
+	bool		onground;				// Identifies if this player is on the ground or other object
 
 	int			respawn_time;			// [RH] delay respawning until this tic
 	TObjPtr<AActor>		camera;			// [RH] Whose eyes this player sees through
diff --git a/src/p_user.cpp b/src/p_user.cpp
index e1b0210efa..90d0dd6cfc 100644
--- a/src/p_user.cpp
+++ b/src/p_user.cpp
@@ -210,8 +210,6 @@ CCMD (playerclasses)
 // 16 pixels of bob
 #define MAXBOB			0x100000
 
-bool onground;
-
 FArchive &operator<< (FArchive &arc, player_t *&p)
 {
 	return arc.SerializePointer (players, (BYTE **)&p, sizeof(*players));
@@ -268,6 +266,7 @@ player_t::player_t()
   PremorphWeapon(0),
   chickenPeck(0),
   jumpTics(0),
+  onground(0),
   respawn_time(0),
   camera(0),
   air_finished(0),
@@ -375,6 +374,7 @@ player_t &player_t::operator=(const player_t &p)
 	PremorphWeapon = p.PremorphWeapon;
 	chickenPeck = p.chickenPeck;
 	jumpTics = p.jumpTics;
+	onground = p.onground;
 	respawn_time = p.respawn_time;
 	camera = p.camera;
 	air_finished = p.air_finished;
@@ -1747,7 +1747,7 @@ void P_CalcHeight (player_t *player)
 	{
 		player->bob = 0;
 	}
-	else if ((player->mo->flags & MF_NOGRAVITY) && !onground)
+	else if ((player->mo->flags & MF_NOGRAVITY) && !player->onground)
 	{
 		player->bob = FRACUNIT / 2;
 	}
@@ -1872,7 +1872,7 @@ void P_MovePlayer (player_t *player)
 		mo->angle += cmd->ucmd.yaw << 16;
 	}
 
-	onground = (mo->z <= mo->floorz) || (mo->flags2 & MF2_ONMOBJ) || (mo->BounceFlags & BOUNCE_MBF) || (player->cheats & CF_NOCLIP2);
+	player->onground = (mo->z <= mo->floorz) || (mo->flags2 & MF2_ONMOBJ) || (mo->BounceFlags & BOUNCE_MBF) || (player->cheats & CF_NOCLIP2);
 
 	// killough 10/98:
 	//
@@ -1890,7 +1890,7 @@ void P_MovePlayer (player_t *player)
 
 		movefactor = P_GetMoveFactor (mo, &friction);
 		bobfactor = friction < ORIG_FRICTION ? movefactor : ORIG_FRICTION_FACTOR;
-		if (!onground && !(player->mo->flags & MF_NOGRAVITY) && !player->mo->waterlevel)
+		if (!player->onground && !(player->mo->flags & MF_NOGRAVITY) && !player->mo->waterlevel)
 		{
 			// [RH] allow very limited movement if not on ground.
 			movefactor = FixedMul (movefactor, level.aircontrol);
@@ -2061,12 +2061,12 @@ void P_DeathThink (player_t *player)
 
 	P_MovePsprites (player);
 
-	onground = (player->mo->z <= player->mo->floorz);
+	player->onground = (player->mo->z <= player->mo->floorz);
 	if (player->mo->IsKindOf (RUNTIME_CLASS(APlayerChunk)))
 	{ // Flying bloody skull or flying ice chunk
 		player->viewheight = 6 * FRACUNIT;
 		player->deltaviewheight = 0;
-		if (onground)
+		if (player->onground)
 		{
 			if (player->mo->pitch > -(int)ANGLE_1*19)
 			{
@@ -2365,7 +2365,7 @@ void P_PlayerThink (player_t *player)
 	if (player->jumpTics != 0)
 	{
 		player->jumpTics--;
-		if (onground && player->jumpTics < -18)
+		if (player->onground && player->jumpTics < -18)
 		{
 			player->jumpTics = 0;
 		}
@@ -2465,7 +2465,7 @@ void P_PlayerThink (player_t *player)
 			{
 				player->mo->velz = 3*FRACUNIT;
 			}
-			else if (level.IsJumpingAllowed() && onground && player->jumpTics == 0)
+			else if (level.IsJumpingAllowed() && player->onground && player->jumpTics == 0)
 			{
 				fixed_t jumpvelz = player->mo->JumpZ * 35 / TICRATE;
 
@@ -2877,6 +2877,14 @@ void player_t::Serialize (FArchive &arc)
 	{
 		settings_controller = (this - players == Net_Arbitrator);
 	}
+	if (SaveVersion >= 4505)
+	{
+		arc << onground;
+	}
+	else
+	{
+		onground = (mo->z <= mo->floorz) || (mo->flags2 & MF2_ONMOBJ) || (mo->BounceFlags & BOUNCE_MBF) || (cheats & CF_NOCLIP2);
+	}
 
 	if (isbot)
 	{
diff --git a/src/version.h b/src/version.h
index 66e2f8938f..1e328b312f 100644
--- a/src/version.h
+++ b/src/version.h
@@ -76,7 +76,7 @@ const char *GetVersionString();
 
 // Use 4500 as the base git save version, since it's higher than the
 // SVN revision ever got.
-#define SAVEVER 4504
+#define SAVEVER 4505
 
 #define SAVEVERSTRINGIFY2(x) #x
 #define SAVEVERSTRINGIFY(x) SAVEVERSTRINGIFY2(x)