diff --git a/apps/openmw/mwdialogue/dialoguemanagerimp.cpp b/apps/openmw/mwdialogue/dialoguemanagerimp.cpp
index c1ebaf10e..42ac70f9c 100644
--- a/apps/openmw/mwdialogue/dialoguemanagerimp.cpp
+++ b/apps/openmw/mwdialogue/dialoguemanagerimp.cpp
@@ -654,8 +654,17 @@ namespace MWDialogue
         if(info != NULL)
         {
             MWBase::WindowManager *winMgr = MWBase::Environment::get().getWindowManager();
-            if(winMgr->getSubtitlesEnabled())
-                winMgr->messageBox(info->mResponse);
+            if (winMgr->getSubtitlesEnabled())
+            /*
+                Start of tes3mp change (minor)
+
+                Prevent subtitles for NPC sounds from being added to a currently open dialogue window,
+                which wasn't a problem in regular OpenMW because time was frozen during dialogue
+            */
+                winMgr->messageBox(info->mResponse, MWGui::ShowInDialogueMode_Never);
+            /*
+                End of tes3mp change (minor)
+            */
             if (!info->mSound.empty())
                 sndMgr->say(actor, info->mSound);
             if (!info->mResultScript.empty())
diff --git a/apps/openmw/mwmp/DedicatedActor.cpp b/apps/openmw/mwmp/DedicatedActor.cpp
index b23abaf26..cc51df983 100644
--- a/apps/openmw/mwmp/DedicatedActor.cpp
+++ b/apps/openmw/mwmp/DedicatedActor.cpp
@@ -138,7 +138,7 @@ void DedicatedActor::playSound()
 
         MWBase::WindowManager *winMgr = MWBase::Environment::get().getWindowManager();
         if (winMgr->getSubtitlesEnabled())
-            winMgr->messageBox(response);
+            winMgr->messageBox(response, MWGui::ShowInDialogueMode_Never);
 
         sound.clear();
     }