diff --git a/src/p_inter.c b/src/p_inter.c
index e9fae2943..6bc645327 100644
--- a/src/p_inter.c
+++ b/src/p_inter.c
@@ -2182,10 +2182,7 @@ static void P_FlingBurst
 	mo->momy = (mo->target->momy/2) + FixedMul(FINESINE(fa>>ANGLETOFINESHIFT), ns);
 
 	ns = FixedMul(momz, player->mo->scale);
-	P_SetObjectMomZ(mo, (mo->target->momz/2) + ns, false);
-
-	if (player->mo->eflags & MFE_VERTICALFLIP)
-		mo->momz *= -1;
+	mo->momz = (mo->target->momz/2) + ns * P_MobjFlip(mo);
 }
 
 /** Spills an injured player's rings.