diff --git a/apps/openmw/mwbase/dialoguemanager.hpp b/apps/openmw/mwbase/dialoguemanager.hpp
index cab6809aa..dfb002cfc 100644
--- a/apps/openmw/mwbase/dialoguemanager.hpp
+++ b/apps/openmw/mwbase/dialoguemanager.hpp
@@ -61,6 +61,8 @@ namespace MWBase
 
             virtual void persuade (int type) = 0;
             virtual int getTemporaryDispositionChange () const = 0;
+
+            /// @note This change is temporary and gets discarded when dialogue ends.
             virtual void applyDispositionChange (int delta) = 0;
 
             virtual int countSavedGameRecords() const = 0;
diff --git a/apps/openmw/mwdialogue/dialoguemanagerimp.cpp b/apps/openmw/mwdialogue/dialoguemanagerimp.cpp
index b6cef2fe7..57681b7fb 100644
--- a/apps/openmw/mwdialogue/dialoguemanagerimp.cpp
+++ b/apps/openmw/mwdialogue/dialoguemanagerimp.cpp
@@ -560,17 +560,7 @@ namespace MWDialogue
 
     void DialogueManager::applyDispositionChange(int delta)
     {
-        int oldTemp = mTemporaryDispositionChange;
         mTemporaryDispositionChange += delta;
-        // don't allow increasing beyond 100 or decreasing below 0
-        int curDisp = MWBase::Environment::get().getMechanicsManager()->getDerivedDisposition(mActor);
-        if (curDisp + mTemporaryDispositionChange < 0)
-            mTemporaryDispositionChange = -curDisp;
-        else if (curDisp + mTemporaryDispositionChange > 100)
-            mTemporaryDispositionChange = 100 - curDisp;
-
-        int diff = mTemporaryDispositionChange - oldTemp;
-        mPermanentDispositionChange += diff;
     }
 
     bool DialogueManager::checkServiceRefused()
diff --git a/apps/openmw/mwdialogue/dialoguemanagerimp.hpp b/apps/openmw/mwdialogue/dialoguemanagerimp.hpp
index db0b78d59..94f8f3ec1 100644
--- a/apps/openmw/mwdialogue/dialoguemanagerimp.hpp
+++ b/apps/openmw/mwdialogue/dialoguemanagerimp.hpp
@@ -84,6 +84,8 @@ namespace MWDialogue
 
             virtual void persuade (int type);
             virtual int getTemporaryDispositionChange () const;
+
+            /// @note This change is temporary and gets discarded when dialogue ends.
             virtual void applyDispositionChange (int delta);
 
             virtual int countSavedGameRecords() const;