diff --git a/src/OpenMesh/Core/IO/writer/OBJWriter.cc b/src/OpenMesh/Core/IO/writer/OBJWriter.cc
index eb2bcf99..bda4a97a 100644
--- a/src/OpenMesh/Core/IO/writer/OBJWriter.cc
+++ b/src/OpenMesh/Core/IO/writer/OBJWriter.cc
@@ -206,7 +206,6 @@ _OBJWriter_::
 write(std::ostream& _out, BaseExporter& _be, Options _opt, std::streamsize _precision) const
 {
   unsigned int idx;
-  size_t nV, nF;
   Vec3f v, n;
   Vec2f t;
   VertexHandle vh;
diff --git a/src/OpenMesh/Core/IO/writer/VTKWriter.cc b/src/OpenMesh/Core/IO/writer/VTKWriter.cc
index fb718dc7..3b3b2332 100644
--- a/src/OpenMesh/Core/IO/writer/VTKWriter.cc
+++ b/src/OpenMesh/Core/IO/writer/VTKWriter.cc
@@ -40,11 +40,7 @@ bool _VTKWriter_::write(const std::string& _filename, BaseExporter& _be, Options
 
 bool _VTKWriter_::write(std::ostream& _out, BaseExporter& _be, Options _opt, std::streamsize _precision) const
 {
-    Vec3f n;
-    Vec2f t;
     VertexHandle vh;
-    OpenMesh::Vec3f c;
-    OpenMesh::Vec4f cA;
 
     // check exporter features
     if (!check(_be, _opt)) {