diff --git a/src/server/game/AI/CoreAI/UnitAI.cpp b/src/server/game/AI/CoreAI/UnitAI.cpp
index d210abea53a..01fb094c4f2 100644
--- a/src/server/game/AI/CoreAI/UnitAI.cpp
+++ b/src/server/game/AI/CoreAI/UnitAI.cpp
@@ -258,6 +258,11 @@ void UnitAI::SortByDistance(std::list<Unit*> list, bool ascending)
     list.sort(Trinity::ObjectDistanceOrderPred(me, ascending));
 }
 
+DefaultTargetSelector::DefaultTargetSelector(Unit const* unit, float dist, bool playerOnly, bool withMainTank, int32 aura)
+    : me(unit), m_dist(dist), m_playerOnly(playerOnly), except(withMainTank ? unit->GetThreatManager().GetCurrentVictim() : nullptr), m_aura(aura)
+{
+}
+
 bool DefaultTargetSelector::operator()(Unit const* target) const
 {
     if (!me)
diff --git a/src/server/game/AI/CoreAI/UnitAI.h b/src/server/game/AI/CoreAI/UnitAI.h
index 7dd04d45536..5894677ebdd 100644
--- a/src/server/game/AI/CoreAI/UnitAI.h
+++ b/src/server/game/AI/CoreAI/UnitAI.h
@@ -66,8 +66,7 @@ struct TC_GAME_API DefaultTargetSelector
     // playerOnly: self explaining
     // withMainTank: allow current tank to be selected
     // aura: if 0: ignored, if > 0: the target shall have the aura, if < 0, the target shall NOT have the aura
-    DefaultTargetSelector(Unit const* unit, float dist, bool playerOnly, bool withMainTank, int32 aura) : me(unit), m_dist(dist), m_playerOnly(playerOnly), except(withMainTank ? me->GetThreatManager().GetCurrentVictim() : nullptr), m_aura(aura) { }
-
+    DefaultTargetSelector(Unit const* unit, float dist, bool playerOnly, bool withMainTank, int32 aura);
     bool operator()(Unit const* target) const;
 };