diff --git a/scripts/alchemy/alchemy.js b/scripts/alchemy/alchemy.js
index d2a8cfc..eb6ca89 100644
--- a/scripts/alchemy/alchemy.js
+++ b/scripts/alchemy/alchemy.js
@@ -122,7 +122,7 @@ function calcPowerFactor(effect, alchemySkill = 15, alchemistLevel = 0, hasPhysi
  * @param {number} fortifyAlchemy 
  */
 function calcMagnitudeDurationCost(effect, alchemySkill = 15, alchemistLevel = 0, hasPhysicianPerk = false, hasBenefactorPerk = false, hasPoisonerPerk = false, isMakingPoison = false, fortifyAlchemy = 0) {
-    const powerFactor = calcPowerFactor(effect, alchemySkill, alchemistLevel, hasPhysicianPerk, hasBenefactorPerk, hasPoisonerPerk, isMakingPoison);
+    const powerFactor = calcPowerFactor(effect, alchemySkill, alchemistLevel, hasPhysicianPerk, hasBenefactorPerk, hasPoisonerPerk, isMakingPoison, fortifyAlchemy);
     let magnitude = effect.calculatedMagnitude;
     // HACK: Don't have NoMagnitude flag.
     if (magnitude <= 0 && !effect.variableMagnitude) {