diff --git a/apps/openmw/mwmechanics/spellcasting.cpp b/apps/openmw/mwmechanics/spellcasting.cpp
index f1c9204210..95f2d940fa 100644
--- a/apps/openmw/mwmechanics/spellcasting.cpp
+++ b/apps/openmw/mwmechanics/spellcasting.cpp
@@ -283,8 +283,6 @@ namespace MWMechanics
     {
     }
 
-    /// Get projectile properties (model, sound and speed) for a spell with the given effects and launch.
-    /// If \a model is empty, the spell has no ranged effects and should not spawn a projectile.
     void CastSpell::launchMagicBolt (const ESM::EffectList& effects)
     {        
         osg::Vec3f fallbackDirection (0,1,0);     
diff --git a/apps/openmw/mwworld/projectilemanager.cpp b/apps/openmw/mwworld/projectilemanager.cpp
index aa5a1b650e..844800a414 100644
--- a/apps/openmw/mwworld/projectilemanager.cpp
+++ b/apps/openmw/mwworld/projectilemanager.cpp
@@ -143,7 +143,7 @@ namespace MWWorld
             attachTo = rotateNode;
         }
 
-        osg::ref_ptr<osg::Node> ptr = mResourceSystem->getSceneManager()->getInstance(model, attachTo);
+        mResourceSystem->getSceneManager()->getInstance(model, attachTo);
 
         if (state.mIdMagic.size() > 1)
             for (size_t iter = 1; iter != state.mIdMagic.size(); ++iter)
@@ -209,7 +209,7 @@ namespace MWWorld
         state.mEffects = getMagicBoltData(state.mIdMagic, state.mSoundIds, state.mSpeed, effects);
 
         // Non-projectile should have been removed by getMagicBoltData
-        if (state.mEffects.mList.size() == 0)
+        if (state.mEffects.mList.empty())
             return;
 
         MWWorld::ManualRef ref(MWBase::Environment::get().getWorld()->getStore(), state.mIdMagic.at(0));