diff --git a/include/osg/BufferObject b/include/osg/BufferObject
index b333e5645..68681c9d5 100644
--- a/include/osg/BufferObject
+++ b/include/osg/BufferObject
@@ -589,7 +589,7 @@ class OSG_EXPORT BufferData : public Object
 
             META_Object(osg,ModifiedCallback);
 
-            virtual void modified(BufferData* bufferData) const {}
+            virtual void modified(BufferData* /*bufferData*/) const {}
         };
 
         void setModifiedCallback(ModifiedCallback* md) { _modifiedCallback = md; }
diff --git a/include/osg/Texture2DMultisample b/include/osg/Texture2DMultisample
index fab4af6c9..36a393f6a 100644
--- a/include/osg/Texture2DMultisample
+++ b/include/osg/Texture2DMultisample
@@ -58,11 +58,11 @@ class OSG_EXPORT Texture2DMultisample : public Texture
         inline void setNumSamples( int samples ) { _numSamples = samples; }
 
         // unnecessary for Texture2DMultisample
-        virtual void setImage(unsigned int face, Image* image){}
-        virtual Image* getImage(unsigned int face){return NULL;}
-        virtual const Image* getImage(unsigned int face) const{return NULL;}
-        virtual unsigned int getNumImages() const{return 0;}
-        virtual void allocateMipmap(State& state) const {}
+        virtual void setImage(unsigned int /*face*/, Image* /*image*/) {}
+        virtual Image* getImage(unsigned int /*face*/) { return NULL; }
+        virtual const Image* getImage(unsigned int /*face*/) const { return NULL; }
+        virtual unsigned int getNumImages() const {return 0; }
+        virtual void allocateMipmap(State& /*state*/) const {}
 
         void setTextureWidth(int width) { _textureWidth=width; }
         void setTextureHeight(int height) { _textureHeight=height; }