diff --git a/apps/openmw/mwmechanics/trading.cpp b/apps/openmw/mwmechanics/trading.cpp
index 469b454df..08e4d097a 100644
--- a/apps/openmw/mwmechanics/trading.cpp
+++ b/apps/openmw/mwmechanics/trading.cpp
@@ -52,7 +52,7 @@ namespace MWMechanics
         float f1 = 0.2f * merchantStats.getAttribute(ESM::Attribute::Personality).getModified();
 
         float dispositionTerm = gmst.find("fDispositionMod")->getFloat() * (clampedDisposition - 50);
-        float pcTerm = (dispositionTerm - 50 + a1 + b1 + c1) * playerStats.getFatigueTerm();
+        float pcTerm = (dispositionTerm + a1 + b1 + c1) * playerStats.getFatigueTerm();
         float npcTerm = (d1 + e1 + f1) * merchantStats.getFatigueTerm();
         float x = gmst.find("fBargainOfferMulti")->getFloat() * d
             + gmst.find("fBargainOfferBase")->getFloat()