diff --git a/apps/openmw/mwclass/door.cpp b/apps/openmw/mwclass/door.cpp
index 4687a8230..f944391e1 100644
--- a/apps/openmw/mwclass/door.cpp
+++ b/apps/openmw/mwclass/door.cpp
@@ -81,14 +81,14 @@ namespace MWClass
         bool needKey = ptr.getCellRef().mLockLevel>0;
         bool hasKey = false;
         std::string keyName;
-	
-	// make key id lowercase
-	std::string keyId = ptr.getCellRef().mKey;
-	std::transform(keyId.begin(), keyId.end(), keyId.begin(), ::tolower);
+
+        // make key id lowercase
+        std::string keyId = ptr.getCellRef().mKey;
+        std::transform(keyId.begin(), keyId.end(), keyId.begin(), ::tolower);
         for (MWWorld::ContainerStoreIterator it = invStore.begin(); it != invStore.end(); ++it)
         {
-	    std::string refId = it->getCellRef().mRefID;
-	    std::transform(refId.begin(), refId.end(), refId.begin(), ::tolower);
+            std::string refId = it->getCellRef().mRefID;
+            std::transform(refId.begin(), refId.end(), refId.begin(), ::tolower);
             if (refId == keyId)
             {
                 hasKey = true;
diff --git a/apps/openmw/mwgui/birth.cpp b/apps/openmw/mwgui/birth.cpp
index 1cd542221..e79eee236 100644
--- a/apps/openmw/mwgui/birth.cpp
+++ b/apps/openmw/mwgui/birth.cpp
@@ -94,7 +94,7 @@ void BirthDialog::setBirthId(const std::string &birthId)
 void BirthDialog::onOkClicked(MyGUI::Widget* _sender)
 {
     if(mBirthList->getIndexSelected() == MyGUI::ITEM_NONE)
-	return;
+        return;
     eventDone(this);
 }
 
diff --git a/apps/openmw/mwgui/charactercreation.cpp b/apps/openmw/mwgui/charactercreation.cpp
index ad9866eca..e4b77287c 100644
--- a/apps/openmw/mwgui/charactercreation.cpp
+++ b/apps/openmw/mwgui/charactercreation.cpp
@@ -232,7 +232,7 @@ void CharacterCreation::spawnDialog(const char id)
             mBirthSignDialog = 0;
             mBirthSignDialog = new BirthDialog(*mWM);
             mBirthSignDialog->setNextButtonShow(mCreationStage >= CSE_BirthSignChosen);
-	    mBirthSignDialog->setBirthId(mPlayerBirthSignId);
+            mBirthSignDialog->setBirthId(mPlayerBirthSignId);
             mBirthSignDialog->eventDone += MyGUI::newDelegate(this, &CharacterCreation::onBirthSignDialogDone);
             mBirthSignDialog->eventBack += MyGUI::newDelegate(this, &CharacterCreation::onBirthSignDialogBack);
             mBirthSignDialog->setVisible(true);
diff --git a/apps/openmw/mwgui/class.cpp b/apps/openmw/mwgui/class.cpp
index 4c889d42d..3e293a1b0 100644
--- a/apps/openmw/mwgui/class.cpp
+++ b/apps/openmw/mwgui/class.cpp
@@ -149,7 +149,7 @@ void PickClassDialog::setClassId(const std::string &classId)
 void PickClassDialog::onOkClicked(MyGUI::Widget* _sender)
 {
     if(mClassList->getIndexSelected() == MyGUI::ITEM_NONE)
-	return;
+        return;
     eventDone(this);
 }
 
diff --git a/apps/openmw/mwgui/race.cpp b/apps/openmw/mwgui/race.cpp
index c68c0edad..9abb05390 100644
--- a/apps/openmw/mwgui/race.cpp
+++ b/apps/openmw/mwgui/race.cpp
@@ -150,7 +150,7 @@ void RaceDialog::close()
 void RaceDialog::onOkClicked(MyGUI::Widget* _sender)
 {
     if(mRaceList->getIndexSelected() == MyGUI::ITEM_NONE)
-	return;
+        return;
     eventDone(this);
 }
 
diff --git a/apps/openmw/mwworld/physicssystem.cpp b/apps/openmw/mwworld/physicssystem.cpp
index a2825fee9..3be85c7f3 100644
--- a/apps/openmw/mwworld/physicssystem.cpp
+++ b/apps/openmw/mwworld/physicssystem.cpp
@@ -345,7 +345,7 @@ namespace MWWorld
 
     bool PhysicsSystem::toggleCollisionMode()
     {
-	playerphysics->ps.move_type = (playerphysics->ps.move_type == PM_NOCLIP ? PM_NORMAL : PM_NOCLIP);
+        playerphysics->ps.move_type = (playerphysics->ps.move_type == PM_NOCLIP ? PM_NORMAL : PM_NOCLIP);
         for(std::map<std::string,OEngine::Physic::PhysicActor*>::iterator it = mEngine->PhysicActorMap.begin(); it != mEngine->PhysicActorMap.end();it++)
         {
             if (it->first=="player")