diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1043ca0cf4..e386f8ddbb 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,6 +8,7 @@
     Bug #5364: Script fails/stops if trying to startscript an unknown script
     Bug #5367: Selecting a spell on an enchanted item per hotkey always plays the equip sound
     Bug #5369: Spawnpoint in the Grazelands doesn't produce oversized creatures
+    Bug #5370: Opening an unlocked but trapped door uses the key
     Feature #5362: Show the soul gems' trapped soul in count dialog
 
 0.46.0
diff --git a/apps/openmw/mwclass/container.cpp b/apps/openmw/mwclass/container.cpp
index 3adeb19d9f..b4b068c912 100644
--- a/apps/openmw/mwclass/container.cpp
+++ b/apps/openmw/mwclass/container.cpp
@@ -177,11 +177,10 @@ namespace MWClass
             }
         }
 
-        if ((isLocked || isTrapped) && hasKey)
+        if (isLocked && hasKey)
         {
             MWBase::Environment::get().getWindowManager ()->messageBox (keyName + " #{sKeyUsed}");
-            if(isLocked)
-                ptr.getCellRef().unlock();
+            ptr.getCellRef().unlock();
             // using a key disarms the trap
             if(isTrapped)
             {
diff --git a/apps/openmw/mwclass/door.cpp b/apps/openmw/mwclass/door.cpp
index 56712a8151..4f82aa9770 100644
--- a/apps/openmw/mwclass/door.cpp
+++ b/apps/openmw/mwclass/door.cpp
@@ -158,12 +158,11 @@ namespace MWClass
             }
         }
 
-        if ((isLocked || isTrapped) && hasKey)
+        if (isLocked && hasKey)
         {
             if(actor == MWMechanics::getPlayer())
                 MWBase::Environment::get().getWindowManager()->messageBox(keyName + " #{sKeyUsed}");
-            if(isLocked)
-                ptr.getCellRef().unlock(); //Call the function here. because that makes sense.
+            ptr.getCellRef().unlock(); //Call the function here. because that makes sense.
             // using a key disarms the trap
             if(isTrapped)
             {
diff --git a/components/esm/cellref.cpp b/components/esm/cellref.cpp
index 69841528f1..ab6ba27547 100644
--- a/components/esm/cellref.cpp
+++ b/components/esm/cellref.cpp
@@ -130,7 +130,10 @@ void ESM::CellRef::loadData(ESMReader &esm, bool &isDeleted)
     }
 
     if (mLockLevel == 0 && !mKey.empty())
+    {
         mLockLevel = UnbreakableLock;
+        mTrap.clear();
+    }
 }
 
 void ESM::CellRef::save (ESMWriter &esm, bool wideRefNum, bool inInventory, bool isDeleted) const