diff --git a/src/game/Entities/Unit/Unit.cpp b/src/game/Entities/Unit/Unit.cpp
index 07b6b93b3..d6e453c5a 100644
--- a/src/game/Entities/Unit/Unit.cpp
+++ b/src/game/Entities/Unit/Unit.cpp
@@ -13699,7 +13699,7 @@ void Unit::ModSpellCastTime(SpellInfo const* spellInfo, int32 & castTime, Spell*
     if (!spellInfo || castTime < 0)
         return;
 
-    if (spellInfo->IsChanneled() && !(spellInfo->AttributesEx5 & SPELL_ATTR5_HASTE_AFFECT_DURATION))
+    if (spellInfo->IsChanneled() && spellInfo->HasAura(SPELL_AURA_MOUNTED))
         return;
 
     // called from caster