diff --git a/src/p_enemy.c b/src/p_enemy.c
index 373f09123..3305709fc 100644
--- a/src/p_enemy.c
+++ b/src/p_enemy.c
@@ -2671,7 +2671,7 @@ void A_LobShot(mobj_t *actor)
 	fixed_t z;
 	fixed_t dist;
 	fixed_t vertical, horizontal;
-	fixed_t airtime = var2 & 65535;
+	fixed_t airtime = max(1, var2 & 65535);
 
 	if (LUA_CallAction(A_LOBSHOT, actor))
 		return;