diff --git a/src/g_game.c b/src/g_game.c
index 9ea51eba..9578cbf8 100644
--- a/src/g_game.c
+++ b/src/g_game.c
@@ -4336,7 +4336,7 @@ void G_GhostTicker(void)
 		{
 		case GHC_SUPER: // Super Sonic (P_DoSuperStuff)
 			g->mo->color = SKINCOLOR_SUPER1;
-			g->mo->color += ( ( ( leveltime >> 1 ) % 9) - 4);
+			g->mo->color += abs( ( (signed)( (unsigned)leveltime >> 1 ) % 9) - 4);
 			break;
 		case GHC_INVINCIBLE: // Mario invincibility (P_CheckInvincibilityTimer)
 			g->mo->color = (UINT8)(leveltime % MAXSKINCOLORS);
diff --git a/src/p_user.c b/src/p_user.c
index 72b08db9..51832119 100644
--- a/src/p_user.c
+++ b/src/p_user.c
@@ -3449,7 +3449,7 @@ static void P_DoSuperStuff(player_t *player)
 			case 2:  /* Knux     */ player->mo->color = SKINCOLOR_KSUPER1; break;
 			default: /* everyone */ player->mo->color = SKINCOLOR_SUPER1; break;
 		}
-		player->mo->color += ( ( ( leveltime >> 1 ) % 9) - 4);
+		player->mo->color += abs( ( (signed)( (unsigned)leveltime >> 1 ) % 9) - 4);
 
 		if ((cmd->forwardmove != 0 || cmd->sidemove != 0 || player->pflags & (PF_CARRIED|PF_ROPEHANG|PF_ITEMHANG|PF_MACESPIN))
 		&& !(leveltime % TICRATE) && (player->mo->momx || player->mo->momy))