diff --git a/src/server/game/Spells/Spell.cpp b/src/server/game/Spells/Spell.cpp
index f36fe0535..4a7cbc2cd 100644
--- a/src/server/game/Spells/Spell.cpp
+++ b/src/server/game/Spells/Spell.cpp
@@ -4275,13 +4275,13 @@ void Spell::SendSpellStart()
 
     //LOG_DEBUG("spells.aura", "Sending SMSG_SPELL_START id=%u", m_spellInfo->Id);
 
-    uint32 castFlags = CAST_FLAG_UNKNOWN_2;
+    uint32 castFlags = CAST_FLAG_HAS_TRAJECTORY;
 
     if (((IsTriggered() && !m_spellInfo->IsAutoRepeatRangedSpell()) || m_triggeredByAuraSpell) && !m_spellInfo->IsChanneled())
         castFlags |= CAST_FLAG_PENDING;
 
     if (m_spellInfo->HasAttribute(SPELL_ATTR0_USES_RANGED_SLOT))
-        castFlags |= CAST_FLAG_AMMO;
+        castFlags |= CAST_FLAG_PROJECTILE;
     if ((m_caster->GetTypeId() == TYPEID_PLAYER ||
             (m_caster->GetTypeId() == TYPEID_UNIT && m_caster->IsPet()))
             && m_spellInfo->PowerType != POWER_HEALTH)
@@ -4307,7 +4307,7 @@ void Spell::SendSpellStart()
     if (castFlags & CAST_FLAG_POWER_LEFT_SELF)
         data << uint32(m_caster->GetPower((Powers)m_spellInfo->PowerType));
 
-    if (castFlags & CAST_FLAG_AMMO)
+    if (castFlags & CAST_FLAG_PROJECTILE)
         WriteAmmoToPacket(&data);
 
     if (castFlags & CAST_FLAG_UNKNOWN_23)
@@ -4337,7 +4337,7 @@ void Spell::SendSpellGo()
         castFlags |= CAST_FLAG_PENDING;
 
     if (m_spellInfo->HasAttribute(SPELL_ATTR0_USES_RANGED_SLOT))
-        castFlags |= CAST_FLAG_AMMO;                        // arrows/bullets visual
+        castFlags |= CAST_FLAG_PROJECTILE;                        // arrows/bullets visual
 
     if ((m_caster->GetTypeId() == TYPEID_PLAYER ||
             (m_caster->GetTypeId() == TYPEID_UNIT && m_caster->IsPet()))
@@ -4410,7 +4410,7 @@ void Spell::SendSpellGo()
         data << uint32(m_delayTrajectory ? m_delayTrajectory : m_delayMoment);
     }
 
-    if (castFlags & CAST_FLAG_AMMO)
+    if (castFlags & CAST_FLAG_PROJECTILE)
         WriteAmmoToPacket(&data);
 
     if (castFlags & CAST_FLAG_VISUAL_CHAIN)
diff --git a/src/server/game/Spells/Spell.h b/src/server/game/Spells/Spell.h
index 1d54f687e..355068743 100644
--- a/src/server/game/Spells/Spell.h
+++ b/src/server/game/Spells/Spell.h
@@ -28,11 +28,11 @@ enum SpellCastFlags
 {
     CAST_FLAG_NONE               = 0x00000000,
     CAST_FLAG_PENDING            = 0x00000001,              // aoe combat log?
-    CAST_FLAG_UNKNOWN_2          = 0x00000002,
+    CAST_FLAG_HAS_TRAJECTORY     = 0x00000002,
     CAST_FLAG_UNKNOWN_3          = 0x00000004,
     CAST_FLAG_UNKNOWN_4          = 0x00000008,              // ignore AOE visual
     CAST_FLAG_UNKNOWN_5          = 0x00000010,
-    CAST_FLAG_AMMO               = 0x00000020,              // Projectiles visual
+    CAST_FLAG_PROJECTILE         = 0x00000020,              // Projectiles visual
     CAST_FLAG_UNKNOWN_7          = 0x00000040,
     CAST_FLAG_UNKNOWN_8          = 0x00000080,
     CAST_FLAG_UNKNOWN_9          = 0x00000100,
@@ -57,8 +57,8 @@ enum SpellCastFlags
     CAST_FLAG_UNKNOWN_28         = 0x08000000,
     CAST_FLAG_UNKNOWN_29         = 0x10000000,
     CAST_FLAG_UNKNOWN_30         = 0x20000000,
-    CAST_FLAG_UNKNOWN_31         = 0x40000000,
-    CAST_FLAG_UNKNOWN_32         = 0x80000000,
+    CAST_FLAG_HEAL_PREDICTION    = 0x40000000,              //@todo: Unused on TC 3.3.5a. Defined from TC Master.
+    CAST_FLAG_UNKNOWN_32         = 0x80000000
 };
 
 //Spells casted on self should not be diminished.