diff --git a/src/Modules/CalcPerform.lua b/src/Modules/CalcPerform.lua
index 05b2d161b5..6e400270d7 100644
--- a/src/Modules/CalcPerform.lua
+++ b/src/Modules/CalcPerform.lua
@@ -497,7 +497,7 @@ local function doActorAttribsConditions(env, actor)
 				modDB:NewMod("Mana", "BASE", m_floor(output.Int / 2), "Intelligence")
 			end
 			if not modDB:Flag(nil, "NoIntBonusToES") then
-				modDB:NewMod("EnergyShield", "INC", m_floor(output.Int / 5), "Intelligence")
+				modDB:NewMod("EnergyShield", "INC", m_floor(output.Int / 10), "Intelligence")
 			end
 		end
 	end