diff --git a/src/server/game/Spells/SpellInfo.cpp b/src/server/game/Spells/SpellInfo.cpp
index 20b1488949..aa8676314b 100644
--- a/src/server/game/Spells/SpellInfo.cpp
+++ b/src/server/game/Spells/SpellInfo.cpp
@@ -674,7 +674,7 @@ float SpellEffectInfo::CalcRadius(WorldObject* caster /*= nullptr*/, SpellTarget
     if (target.GetTarget() == TARGET_DEST_CASTER_RANDOM ||
         target.GetTarget() == TARGET_DEST_TARGET_RANDOM ||
         target.GetTarget() == TARGET_DEST_DEST_RANDOM)
-        radius += (entry->RadiusMax - radius) * rand_norm();
+        radius += (entry->RadiusMax - radius) * std::sqrt(rand_norm());
     else if (radius == 0.0f)
         radius = entry->RadiusMax;