diff --git a/src/weapons/ProjectileInfo.cpp b/src/weapons/ProjectileInfo.cpp
index 754da5f7..0930756c 100644
--- a/src/weapons/ProjectileInfo.cpp
+++ b/src/weapons/ProjectileInfo.cpp
@@ -159,8 +159,12 @@ CProjectileInfo::AddProjectile(CEntity *entity, eWeaponType weapon, CVector pos,
 	}
 
 	int i = 0;
+#ifdef FIX_BUGS
+	while (i < ARRAY_SIZE(gaProjectileInfo) && gaProjectileInfo[i].m_bInUse) i++;
+#else
+	// array overrun is UB
 	while (gaProjectileInfo[i].m_bInUse && i < ARRAY_SIZE(gaProjectileInfo)) i++;
-
+#endif
 	if (i == ARRAY_SIZE(gaProjectileInfo))
 		return false;