diff --git a/apps/openmw/mwgui/dialogue.cpp b/apps/openmw/mwgui/dialogue.cpp
index 40ec57731..771e1bf95 100644
--- a/apps/openmw/mwgui/dialogue.cpp
+++ b/apps/openmw/mwgui/dialogue.cpp
@@ -639,8 +639,7 @@ namespace MWGui
     {
         if(mMainWidget->getVisible() && mEnabled && mPtr.getTypeName() == typeid(ESM::NPC).name())
         {
-            int disp = std::max(0, std::min(100,
-                MWBase::Environment::get().getMechanicsManager()->getDerivedDisposition(mPtr)));
+            int disp = MWBase::Environment::get().getMechanicsManager()->getDerivedDisposition(mPtr);
             mDispositionBar->setProgressRange(100);
             mDispositionBar->setProgressPosition(disp);
             mDispositionText->setCaption(MyGUI::utility::toString(disp)+std::string("/100"));
diff --git a/apps/openmw/mwgui/tradewindow.cpp b/apps/openmw/mwgui/tradewindow.cpp
index 14c78cf0f..c084ec243 100644
--- a/apps/openmw/mwgui/tradewindow.cpp
+++ b/apps/openmw/mwgui/tradewindow.cpp
@@ -346,7 +346,7 @@ namespace MWGui
             else
                 d = int(100 * (b - a) / a);
 
-            int clampedDisposition = std::max(0, std::min(MWBase::Environment::get().getMechanicsManager()->getDerivedDisposition(mPtr),100));
+            int clampedDisposition = MWBase::Environment::get().getMechanicsManager()->getDerivedDisposition(mPtr);
 
             const MWMechanics::CreatureStats &sellerStats = mPtr.getClass().getCreatureStats(mPtr);
             const MWMechanics::CreatureStats &playerStats = player.getClass().getCreatureStats(player);
diff --git a/apps/openmw/mwmechanics/mechanicsmanagerimp.cpp b/apps/openmw/mwmechanics/mechanicsmanagerimp.cpp
index d02fce94e..ece0a2fbc 100644
--- a/apps/openmw/mwmechanics/mechanicsmanagerimp.cpp
+++ b/apps/openmw/mwmechanics/mechanicsmanagerimp.cpp
@@ -672,7 +672,7 @@ namespace MWMechanics
 
         // I suppose the temporary disposition change (second param to getDerivedDisposition()) _has_ to be considered here,
         // otherwise one would get different prices when exiting and re-entering the dialogue window...
-        int clampedDisposition = std::max(0, std::min(getDerivedDisposition(ptr),100));
+        int clampedDisposition = getDerivedDisposition(ptr);
         float a = static_cast<float>(std::min(playerStats.getSkill(ESM::Skill::Mercantile).getModified(), 100));
         float b = std::min(0.1f * playerStats.getAttribute(ESM::Attribute::Luck).getModified(), 10.f);
         float c = std::min(0.2f * playerStats.getAttribute(ESM::Attribute::Personality).getModified(), 10.f);