diff --git a/src/Modules/CalcPerform.lua b/src/Modules/CalcPerform.lua
index 71963c0b64..2e5c3deca7 100644
--- a/src/Modules/CalcPerform.lua
+++ b/src/Modules/CalcPerform.lua
@@ -1519,7 +1519,7 @@ function calcs.perform(env, skipEHP)
 		breakdown.ManaReserved = { reservations = { } }
 	end
 	for _, activeSkill in ipairs(env.player.activeSkillList) do
-		if activeSkill.skillTypes[SkillType.HasReservation] or activeSkill.skillData.SupportedByAutoexertion and not activeSkill.skillTypes[SkillType.ReservationBecomesCost] then
+		if (activeSkill.skillTypes[SkillType.HasReservation] or activeSkill.skillData.SupportedByAutoexertion) and not activeSkill.skillTypes[SkillType.ReservationBecomesCost] then
 			local skillModList = activeSkill.skillModList
 			local skillCfg = activeSkill.skillCfg
 			local mult = floor(skillModList:More(skillCfg, "SupportManaMultiplier"), 4)