diff --git a/src/osgPlugins/dxf/DXFWriterNodeVisitor.h b/src/osgPlugins/dxf/DXFWriterNodeVisitor.h
index f5b0ae961..a5ef761f7 100644
--- a/src/osgPlugins/dxf/DXFWriterNodeVisitor.h
+++ b/src/osgPlugins/dxf/DXFWriterNodeVisitor.h
@@ -229,7 +229,7 @@ class DXFWriterNodeVisitor: public osg::NodeVisitor {
             }
         }
 
-        int getNodeAcadColor(osg::Geometry *geo,int index=0) { return 0;}
+        int getNodeAcadColor(osg::Geometry* /*geo*/,int /*index*/=0) { return 0;}
 
     protected:
         struct CompareStateSet
diff --git a/src/osgPlugins/dxf/ReaderWriterDXF.cpp b/src/osgPlugins/dxf/ReaderWriterDXF.cpp
index 4806f1884..b38e952bd 100644
--- a/src/osgPlugins/dxf/ReaderWriterDXF.cpp
+++ b/src/osgPlugins/dxf/ReaderWriterDXF.cpp
@@ -77,7 +77,7 @@ public:
         return WriteResult(WriteResult::FILE_SAVED);
     }
 
-    virtual WriteResult writeNode(const osg::Node& node,const std::string& fileName,const Options* options =NULL) const
+    virtual WriteResult writeNode(const osg::Node& node,const std::string& fileName,const Options* /*options*/ =NULL) const
     {
         if (!acceptsExtension(osgDB::getFileExtension(fileName)))
             return WriteResult(WriteResult::FILE_NOT_HANDLED);
diff --git a/src/osgPlugins/dxf/dxfEntity.h b/src/osgPlugins/dxf/dxfEntity.h
index 532aa89ab..071f42b45 100644
--- a/src/osgPlugins/dxf/dxfEntity.h
+++ b/src/osgPlugins/dxf/dxfEntity.h
@@ -186,10 +186,10 @@ public:
     virtual void assign(dxfFile* dxf, codeValue& cv);
     void getVertex(double &x, double &y, double &z) { x=_vertex.x();y=_vertex.y();z=_vertex.z(); }
     const osg::Vec3d& getVertex() const { return _vertex; }
-    const unsigned int getIndice1() const { return _indice1; }
-    const unsigned int getIndice2() const { return _indice2; }
-    const unsigned int getIndice3() const { return _indice3; }
-    const unsigned int getIndice4() const { return _indice4; }
+    unsigned int getIndice1() const { return _indice1; }
+    unsigned int getIndice2() const { return _indice2; }
+    unsigned int getIndice3() const { return _indice3; }
+    unsigned int getIndice4() const { return _indice4; }
 
 protected:
     osg::Vec3d    _vertex;